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#include<stdio.h>
#include<algorithm>
#include<math.h>
using namespace std;
const double EPS=1e-10;
const double INF=1e+10;
const double PI=acos(-1);
//
// MEMO
//     ***
//     ***
// .
//
//　こういうケースの場合わけが足りていない。別に付け足そうと思う。左右反転が使える。真ん中の場合わけは3通り。
 
 
//  ここらへんに
//　　　かつて
//　ライブラリがあった。
int use[30];
int main(){
	double r,x1,y1,x2,y2;
	while(scanf("%lf%lf%lf%lf%lf",&r,&x1,&y1,&x2,&y2)){
		if(r<0.5)break;
		if(y2<0){
			double c=y1;
			y1=-y2;
			y2=-c;
		}else if(y1<=0){
			double d=x1;
			double e=x2;
			x1=y1;
			x2=y2;
			if(x2<0){
				y1=-e;
				y2=-d;
			}else{
				y1=d;
				y2=e;
			}
		}
		if(x2<0){
			double c=x2;
			x2=-x1;
			x1=-c;
		}
		double ret=0;
		double L[5];
		double R[5];
		for(int i=0;i<5;i++)L[i]=R[i]=0;
		L[0]=r;
		R[0]=r;
		int ls=1;
		int rs=1;
		ret+=r*PI;
		if(dSP(Pt(x1,y1),Pt(x2,y1),Pt(0,0))>r){
			use[0]++;
			ret+=r*PI;
			goto end;
		}
		if(x1>0){
			ls++;
			if(Pt(x1,y2).Abs()<r){
				L[ls++]=r-Pt(x1,y2).Abs();
				if(L[2]>x2-x1){
					L[ls++]=L[2]-(x2-x1);
					if(L[3]>y2-y1){
						L[ls++]=L[3]-(y2-y1);
					}
				}
			}
			if(Pt(x2,y1).Abs()<r){
				R[rs++]=r-Pt(x2,y1).Abs();
				if(R[1]>y2-y1){
					R[rs++]=R[1]-(y2-y1);
					if(R[2]>x2-x1){
						R[rs++]=R[2]-(x2-x1);
						if(R[3]>y2-y1){
							R[rs++]=R[3]-(y2-y1);
						}
					}
				}
			}
			if(ls>2&&rs>2&&iCC(Pt(x1,y2),L[2],Pt(x2,y2),R[2])==1){
use[1]++;				pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y2),R[2]);
				if(W.first.x<x2&&W.first.x>x1&&W.first.y>y2){
					Pt q=W.first;
					Pt pL=q-Pt(x1,y2);
					Pt pR=q-Pt(x2,y2);
					ret+=(PI-atan2(y2,x1))*r;
					ret+=(atan2(y1,x2))*r;
					ret+=(PI/2-atan2(y1,x2))*R[1];
					ret+=(atan2(pR.y,pR.x)-PI/2)*R[2];
					ret+=(atan2(y2,x1)-atan2(pL.y,pL.x))*L[2];
					goto end;
				}
				if(W.second.x<x2&&W.second.x>x1&&W.second.y>y2){
					Pt q=W.second;
					Pt pL=q-Pt(x1,y2);
					Pt pR=q-Pt(x2,y2);
					ret+=(PI-atan2(y2,x1))*r;
					ret+=(atan2(y1,x2))*r;
					ret+=(PI/2-atan2(y1,x2))*R[1];
					ret+=(atan2(pR.y,pR.x)-PI/2)*R[2];
					ret+=(atan2(y2,x1)-atan2(pL.y,pL.x))*L[2];
					goto end;
				}
			}
			if(ls>2&&rs>1&&iCC(Pt(x1,y2),L[2],Pt(x2,y1),R[1])==1){
use[2]++;				pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y1),R[1]);
				if(W.first.x>x2&&W.first.y>y2){
					Pt q=W.first;
					Pt pL=q-Pt(x1,y2);
					Pt pR=q-Pt(x2,y1);
					ret+=(PI-atan2(y2,x1))*r;
					ret+=(atan2(y1,x2))*r;
					ret+=(atan2(pR.y,pR.x)-atan2(y1,x2))*R[1];
					ret+=(atan2(y2,x1)-atan2(pL.y,pL.x))*L[2];
					goto end;
				}
				if(W.second.x>x2&&W.second.y>y2){
					Pt q=W.second;
					Pt pL=q-Pt(x1,y2);
					Pt pR=q-Pt(x2,y1);
					ret+=(PI-atan2(y2,x1))*r;
					ret+=(atan2(y1,x2))*r;
					ret+=(atan2(pR.y,pR.x)-atan2(y1,x2))*R[1];
					ret+=(atan2(y2,x1)-atan2(pL.y,pL.x))*L[2];
					goto end;
				}
			}
			if(ls>3&&rs>1&&iCC(Pt(x2,y2),L[3],Pt(x2,y1),R[1])==1){
use[3]++;				pair<Pt,Pt> W=pCC(Pt(x2,y2),L[3],Pt(x2,y1),R[1]);
				if(W.first.x>x2&&W.first.y>y1&&W.first.y<y2){
					Pt q=W.first;
					Pt pL=q-Pt(x2,y2);
					Pt pR=q-Pt(x2,y1);
					ret+=(PI-atan2(y2,x1))*r;
					ret+=(atan2(y1,x2))*r;
					ret+=(-atan2(y1,x2)+atan2(pR.y,pR.x))*R[1];
					ret+=(atan2(y2,x1))*L[2];
					ret+=(-atan2(pL.y,pL.x))*L[3];
					goto end;
				}
				if(W.second.x>x2&&W.second.y>y1&&W.second.y<y2){
					Pt q=W.second;
					Pt pL=q-Pt(x2,y2);
					Pt pR=q-Pt(x2,y1);
					ret+=(PI-atan2(y2,x1))*r;
					ret+=(atan2(y1,x2))*r;
					ret+=(-atan2(y1,x2)+atan2(pR.y,pR.x))*R[1];
					ret+=(atan2(y2,x1))*L[2];
					ret+=(-atan2(pL.y,pL.x))*L[3];
					goto end;
				}
			}
 
			if(Pt(x1,y2).Abs()>r){
use[4]++;				pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x1,y2));
				if(D.first.y>0){
					ret+=(PI-atan2(D.first.y,D.first.x))*r;
				}else ret+=(PI-atan2(D.second.y,D.second.x))*r;
			}else{
use[5]++;				ret+=(PI-atan2(y2,x1))*r;
				ret+=(atan2(y2,x1))*L[2];
				ret+=PI/2*L[3];
			}
			if(Pt(x2,y1).Abs()>r){
use[6]++;				pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x2,y1));
				if(D.first.x>D.second.x){
					ret+=(atan2(D.first.y,D.first.x))*r;
				}else{
					ret+=(atan2(D.second.y,D.second.x))*r;
				}
			}else{
use[7]++;				ret+=(atan2(y1,x2))*r;
				ret+=(PI/2-atan2(y1,x2))*R[1];
				ret+=PI/2*R[2];
				ret+=PI/2*R[3];
			}
			goto end;
		}
		if(Pt(x1,y1).Abs()<r){
			L[ls++]=r-Pt(x1,y1).Abs();
			if(L[1]>y2-y1){
				L[ls++]=L[1]-(y2-y1);
				if(L[2]>x2-x1){
					L[ls++]=L[2]-(x2-x1);
					if(L[3]>y2-y1){
						L[ls++]=L[3]-(y2-y1);
					}
				}
			}
		}
		if(Pt(x2,y1).Abs()<r){
			R[rs++]=r-Pt(x2,y1).Abs();
			if(R[1]>y2-y1){
				R[rs++]=R[1]-(y2-y1);
				if(R[2]>x2-x1){
					R[rs++]=R[2]-(x2-x1);
					if(R[3]>y2-y1){
						R[rs++]=R[3]-(y2-y1);
					}
				}
			}
		}
 
		if(ls>1&&rs>2&&iCC(Pt(x1,y1),L[1],Pt(x2,y2),R[2])==1){
use[8]++;			pair<Pt,Pt> W=pCC(Pt(x1,y1),L[1],Pt(x2,y2),R[2]);
			if(W.first.x<x1&&W.first.y>y2){
				Pt q=W.first;
				Pt pL=q-Pt(x1,y1);
				Pt pR=q-Pt(x2,y2);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(atan2(y1,x1)-atan2(pL.y,pL.x))*L[1];
				ret+=(PI/2-atan2(y1,x2))*R[1];
				ret+=(atan2(pR.y,pR.x)-PI/2)*R[2];
				goto end;
			}
			if(W.second.x<x1&&W.second.y>y2){
				Pt q=W.second;
				Pt pL=q-Pt(x1,y1);
				Pt pR=q-Pt(x2,y2);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(atan2(y1,x1)-atan2(pL.y,pL.x))*L[1];
				ret+=(PI/2-atan2(y1,x2))*R[1];
				ret+=(atan2(pR.y,pR.x)-PI/2)*R[2];
				goto end;
			}
		}
		if(ls>1&&rs>3&&iCC(Pt(x1,y1),L[1],Pt(x1,y2),R[3])==1){
use[9]++;			pair<Pt,Pt> W=pCC(Pt(x1,y1),L[1],Pt(x1,y2),R[3]);
			if(W.first.x<x1&&W.first.y>y1&&W.first.y<y2){
				Pt q=W.first;
				Pt pL=q-Pt(x1,y1);
				Pt pR=q-Pt(x1,y2);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(atan2(y1,x1)-atan2(pL.y,pL.x))*L[1];
				ret+=(PI/2-atan2(y1,x2))*R[1];
				ret+=PI/2*R[2];
				ret+=(atan2(pR.y,pR.x)-PI)*R[3];
				goto end;
			}
			if(W.second.x<x1&&W.second.y>y1&&W.second.y<y2){
				Pt q=W.second;
				Pt pL=q-Pt(x1,y1);
				Pt pR=q-Pt(x1,y2);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(atan2(y1,x1)-atan2(pL.y,pL.x))*L[1];
				ret+=(PI/2-atan2(y1,x2))*R[1];
				ret+=PI/2*R[2];
				ret+=(atan2(pR.y,pR.x)-PI)*R[3];
				goto end;
			}
		}
		if(ls>2&&rs>1&&iCC(Pt(x1,y2),L[2],Pt(x2,y1),R[1])==1){
use[10]++;			pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y1),R[1]);
			if(W.first.x>x2&&W.first.y>y2){
				Pt q=W.first;
				Pt pL=q-Pt(x1,y2);
				Pt pR=q-Pt(x2,y1);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(atan2(y1,x1)-PI/2)*L[1];
				ret+=(atan2(pR.y,pR.x)-atan2(y1,x2))*R[1];
				ret+=(PI/2-atan2(pL.y,pL.x))*L[2];
				goto end;
			}
			if(W.second.x>x2&&W.second.y>y2){
				Pt q=W.second;
				Pt pL=q-Pt(x1,y2);
				Pt pR=q-Pt(x2,y1);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(atan2(y1,x1)-PI/2)*L[1];
				ret+=(atan2(pR.y,pR.x)-atan2(y1,x2))*R[1];
				ret+=(PI/2-atan2(pL.y,pL.x))*L[2];
				goto end;
			}
		}
		if(ls>2&&rs>2&&iCC(Pt(x1,y2),L[2],Pt(x2,y2),R[2])==1){
use[11]++;			pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y2),R[2]);
			if(W.first.x<x2&&W.first.x>x1&&W.first.y>y2){
				Pt q=W.first;
				Pt pL=q-Pt(x1,y2);
				Pt pR=q-Pt(x2,y2);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(atan2(y1,x1)-PI/2)*L[1];
				ret+=(PI/2-atan2(y1,x2))*R[1];
				ret+=(atan2(pR.y,pR.x)-PI/2)*R[2];
				ret+=(PI/2-atan2(pL.y,pL.x))*L[2];
				goto end;
			}
			if(W.second.x<x2&&W.second.x>x1&&W.second.y>y2){
				Pt q=W.second;
				Pt pL=q-Pt(x1,y2);
				Pt pR=q-Pt(x2,y2);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(atan2(y1,x1)-PI/2)*L[1];
				ret+=(PI/2-atan2(y1,x2))*R[1];
				ret+=(atan2(pR.y,pR.x)-PI/2)*R[2];
				ret+=(PI/2-atan2(pL.y,pL.x))*L[2];
				goto end;
			}
		}
		if(ls>3&&rs>1&&iCC(Pt(x2,y2),L[3],Pt(x2,y1),R[1])==1){
use[12]++;			pair<Pt,Pt> W=pCC(Pt(x2,y2),L[3],Pt(x2,y1),R[1]);
			if(W.first.x>x2&&W.first.y>y1&&W.first.y<y2){
				Pt q=W.first;
				Pt pL=q-Pt(x2,y2);
				Pt pR=q-Pt(x2,y1);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(-atan2(y1,x2)+atan2(pR.y,pR.x))*R[1];
				ret+=(atan2(y1,x1)-PI/2)*L[1];
				ret+=PI/2*L[2];
				ret+=(-atan2(pL.y,pL.x))*L[3];
				goto end;
			}
			if(W.second.x>x2&&W.second.y>y1&&W.second.y<y2){
				Pt q=W.second;
				Pt pL=q-Pt(x2,y2);
				Pt pR=q-Pt(x2,y1);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(-atan2(y1,x2)+atan2(pR.y,pR.x))*R[1];
				ret+=(atan2(y1,x1)-PI/2)*L[1];
				ret+=PI/2*L[2];
				ret+=(-atan2(pL.y,pL.x))*L[3];
				goto end;
			}
		}
		if(Pt(x1,y1).Abs()>r){
use[13]++;			pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x2,y1));
			if(D.first.x<D.second.x){
				ret+=(PI-atan2(D.first.y,D.first.x))*r;
			}else ret+=(PI-atan2(D.second.y,D.second.x))*r;
		}else{
use[14]++;			ret+=(PI-atan2(y1,x1))*r;
			ret+=(atan2(y1,x1)-PI/2)*L[1];
			ret+=PI/2*L[2];
			ret+=PI/2*L[3];
		}
		if(Pt(x2,y1).Abs()>r){
use[15]++;			pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x2,y1));
			if(D.first.x>D.second.x){
				ret+=(atan2(D.first.y,D.first.x))*r;
			}else{
				ret+=(atan2(D.second.y,D.second.x))*r;
			}
		}else{
use[16]++;			ret+=(atan2(y1,x2))*r;
			ret+=(PI/2-atan2(y1,x2))*R[1];
			ret+=PI/2*R[2];
			ret+=PI/2*R[3];
		}
		end:;
		printf("%.8f\n",ret);
	}
//	for(int i=0;i<17;i++)printf("%d ",use[i]);
}

#include<stdio.h>
#include<algorithm>
#include<math.h>
using namespace std;
const double EPS=1e-10;
const double INF=1e+10;
const double PI=acos(-1);
//
// MEMO
//     ***
//     ***
// .
//
//　こういうケースの場合わけが足りていない。別に付け足そうと思う。左右反転が使える。真ん中の場合わけは3通り。


//  ここらへんに
//　　　かつて
//　ライブラリがあった。
int use[30];
int main(){
	double r,x1,y1,x2,y2;
	while(scanf("%lf%lf%lf%lf%lf",&r,&x1,&y1,&x2,&y2)){
		if(r<0.5)break;
		if(y2<0){
			double c=y1;
			y1=-y2;
			y2=-c;
		}else if(y1<=0){
			double d=x1;
			double e=x2;
			x1=y1;
			x2=y2;
			if(x2<0){
				y1=-e;
				y2=-d;
			}else{
				y1=d;
				y2=e;
			}
		}
		if(x2<0){
			double c=x2;
			x2=-x1;
			x1=-c;
		}
		double ret=0;
		double L[5];
		double R[5];
		for(int i=0;i<5;i++)L[i]=R[i]=0;
		L[0]=r;
		R[0]=r;
		int ls=1;
		int rs=1;
		ret+=r*PI;
		if(dSP(Pt(x1,y1),Pt(x2,y1),Pt(0,0))>r){
			use[0]++;
			ret+=r*PI;
			goto end;
		}
		if(x1>0){
			ls++;
			if(Pt(x1,y2).Abs()<r){
				L[ls++]=r-Pt(x1,y2).Abs();
				if(L[2]>x2-x1){
					L[ls++]=L[2]-(x2-x1);
					if(L[3]>y2-y1){
						L[ls++]=L[3]-(y2-y1);
					}
				}
			}
			if(Pt(x2,y1).Abs()<r){
				R[rs++]=r-Pt(x2,y1).Abs();
				if(R[1]>y2-y1){
					R[rs++]=R[1]-(y2-y1);
					if(R[2]>x2-x1){
						R[rs++]=R[2]-(x2-x1);
						if(R[3]>y2-y1){
							R[rs++]=R[3]-(y2-y1);
						}
					}
				}
			}
			if(ls>2&&rs>2&&iCC(Pt(x1,y2),L[2],Pt(x2,y2),R[2])==1){
use[1]++;				pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y2),R[2]);
				if(W.first.x<x2&&W.first.x>x1&&W.first.y>y2){
					Pt q=W.first;
					Pt pL=q-Pt(x1,y2);
					Pt pR=q-Pt(x2,y2);
					ret+=(PI-atan2(y2,x1))*r;
					ret+=(atan2(y1,x2))*r;
					ret+=(PI/2-atan2(y1,x2))*R[1];
					ret+=(atan2(pR.y,pR.x)-PI/2)*R[2];
					ret+=(atan2(y2,x1)-atan2(pL.y,pL.x))*L[2];
					goto end;
				}
				if(W.second.x<x2&&W.second.x>x1&&W.second.y>y2){
					Pt q=W.second;
					Pt pL=q-Pt(x1,y2);
					Pt pR=q-Pt(x2,y2);
					ret+=(PI-atan2(y2,x1))*r;
					ret+=(atan2(y1,x2))*r;
					ret+=(PI/2-atan2(y1,x2))*R[1];
					ret+=(atan2(pR.y,pR.x)-PI/2)*R[2];
					ret+=(atan2(y2,x1)-atan2(pL.y,pL.x))*L[2];
					goto end;
				}
			}
			if(ls>2&&rs>1&&iCC(Pt(x1,y2),L[2],Pt(x2,y1),R[1])==1){
use[2]++;				pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y1),R[1]);
				if(W.first.x>x2&&W.first.y>y2){
					Pt q=W.first;
					Pt pL=q-Pt(x1,y2);
					Pt pR=q-Pt(x2,y1);
					ret+=(PI-atan2(y2,x1))*r;
					ret+=(atan2(y1,x2))*r;
					ret+=(atan2(pR.y,pR.x)-atan2(y1,x2))*R[1];
					ret+=(atan2(y2,x1)-atan2(pL.y,pL.x))*L[2];
					goto end;
				}
				if(W.second.x>x2&&W.second.y>y2){
					Pt q=W.second;
					Pt pL=q-Pt(x1,y2);
					Pt pR=q-Pt(x2,y1);
					ret+=(PI-atan2(y2,x1))*r;
					ret+=(atan2(y1,x2))*r;
					ret+=(atan2(pR.y,pR.x)-atan2(y1,x2))*R[1];
					ret+=(atan2(y2,x1)-atan2(pL.y,pL.x))*L[2];
					goto end;
				}
			}
			if(ls>3&&rs>1&&iCC(Pt(x2,y2),L[3],Pt(x2,y1),R[1])==1){
use[3]++;				pair<Pt,Pt> W=pCC(Pt(x2,y2),L[3],Pt(x2,y1),R[1]);
				if(W.first.x>x2&&W.first.y>y1&&W.first.y<y2){
					Pt q=W.first;
					Pt pL=q-Pt(x2,y2);
					Pt pR=q-Pt(x2,y1);
					ret+=(PI-atan2(y2,x1))*r;
					ret+=(atan2(y1,x2))*r;
					ret+=(-atan2(y1,x2)+atan2(pR.y,pR.x))*R[1];
					ret+=(atan2(y2,x1))*L[2];
					ret+=(-atan2(pL.y,pL.x))*L[3];
					goto end;
				}
				if(W.second.x>x2&&W.second.y>y1&&W.second.y<y2){
					Pt q=W.second;
					Pt pL=q-Pt(x2,y2);
					Pt pR=q-Pt(x2,y1);
					ret+=(PI-atan2(y2,x1))*r;
					ret+=(atan2(y1,x2))*r;
					ret+=(-atan2(y1,x2)+atan2(pR.y,pR.x))*R[1];
					ret+=(atan2(y2,x1))*L[2];
					ret+=(-atan2(pL.y,pL.x))*L[3];
					goto end;
				}
			}

			if(Pt(x1,y2).Abs()>r){
use[4]++;				pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x1,y2));
				if(D.first.y>0){
					ret+=(PI-atan2(D.first.y,D.first.x))*r;
				}else ret+=(PI-atan2(D.second.y,D.second.x))*r;
			}else{
use[5]++;				ret+=(PI-atan2(y2,x1))*r;
				ret+=(atan2(y2,x1))*L[2];
				ret+=PI/2*L[3];
			}
			if(Pt(x2,y1).Abs()>r){
use[6]++;				pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x2,y1));
				if(D.first.x>D.second.x){
					ret+=(atan2(D.first.y,D.first.x))*r;
				}else{
					ret+=(atan2(D.second.y,D.second.x))*r;
				}
			}else{
use[7]++;				ret+=(atan2(y1,x2))*r;
				ret+=(PI/2-atan2(y1,x2))*R[1];
				ret+=PI/2*R[2];
				ret+=PI/2*R[3];
			}
			goto end;
		}
		if(Pt(x1,y1).Abs()<r){
			L[ls++]=r-Pt(x1,y1).Abs();
			if(L[1]>y2-y1){
				L[ls++]=L[1]-(y2-y1);
				if(L[2]>x2-x1){
					L[ls++]=L[2]-(x2-x1);
					if(L[3]>y2-y1){
						L[ls++]=L[3]-(y2-y1);
					}
				}
			}
		}
		if(Pt(x2,y1).Abs()<r){
			R[rs++]=r-Pt(x2,y1).Abs();
			if(R[1]>y2-y1){
				R[rs++]=R[1]-(y2-y1);
				if(R[2]>x2-x1){
					R[rs++]=R[2]-(x2-x1);
					if(R[3]>y2-y1){
						R[rs++]=R[3]-(y2-y1);
					}
				}
			}
		}
		
		if(ls>1&&rs>2&&iCC(Pt(x1,y1),L[1],Pt(x2,y2),R[2])==1){
use[8]++;			pair<Pt,Pt> W=pCC(Pt(x1,y1),L[1],Pt(x2,y2),R[2]);
			if(W.first.x<x1&&W.first.y>y2){
				Pt q=W.first;
				Pt pL=q-Pt(x1,y1);
				Pt pR=q-Pt(x2,y2);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(atan2(y1,x1)-atan2(pL.y,pL.x))*L[1];
				ret+=(PI/2-atan2(y1,x2))*R[1];
				ret+=(atan2(pR.y,pR.x)-PI/2)*R[2];
				goto end;
			}
			if(W.second.x<x1&&W.second.y>y2){
				Pt q=W.second;
				Pt pL=q-Pt(x1,y1);
				Pt pR=q-Pt(x2,y2);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(atan2(y1,x1)-atan2(pL.y,pL.x))*L[1];
				ret+=(PI/2-atan2(y1,x2))*R[1];
				ret+=(atan2(pR.y,pR.x)-PI/2)*R[2];
				goto end;
			}
		}
		if(ls>1&&rs>3&&iCC(Pt(x1,y1),L[1],Pt(x1,y2),R[3])==1){
use[9]++;			pair<Pt,Pt> W=pCC(Pt(x1,y1),L[1],Pt(x1,y2),R[3]);
			if(W.first.x<x1&&W.first.y>y1&&W.first.y<y2){
				Pt q=W.first;
				Pt pL=q-Pt(x1,y1);
				Pt pR=q-Pt(x1,y2);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(atan2(y1,x1)-atan2(pL.y,pL.x))*L[1];
				ret+=(PI/2-atan2(y1,x2))*R[1];
				ret+=PI/2*R[2];
				ret+=(atan2(pR.y,pR.x)-PI)*R[3];
				goto end;
			}
			if(W.second.x<x1&&W.second.y>y1&&W.second.y<y2){
				Pt q=W.second;
				Pt pL=q-Pt(x1,y1);
				Pt pR=q-Pt(x1,y2);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(atan2(y1,x1)-atan2(pL.y,pL.x))*L[1];
				ret+=(PI/2-atan2(y1,x2))*R[1];
				ret+=PI/2*R[2];
				ret+=(atan2(pR.y,pR.x)-PI)*R[3];
				goto end;
			}
		}
		if(ls>2&&rs>1&&iCC(Pt(x1,y2),L[2],Pt(x2,y1),R[1])==1){
use[10]++;			pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y1),R[1]);
			if(W.first.x>x2&&W.first.y>y2){
				Pt q=W.first;
				Pt pL=q-Pt(x1,y2);
				Pt pR=q-Pt(x2,y1);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(atan2(y1,x1)-PI/2)*L[1];
				ret+=(atan2(pR.y,pR.x)-atan2(y1,x2))*R[1];
				ret+=(PI/2-atan2(pL.y,pL.x))*L[2];
				goto end;
			}
			if(W.second.x>x2&&W.second.y>y2){
				Pt q=W.second;
				Pt pL=q-Pt(x1,y2);
				Pt pR=q-Pt(x2,y1);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(atan2(y1,x1)-PI/2)*L[1];
				ret+=(atan2(pR.y,pR.x)-atan2(y1,x2))*R[1];
				ret+=(PI/2-atan2(pL.y,pL.x))*L[2];
				goto end;
			}
		}
		if(ls>2&&rs>2&&iCC(Pt(x1,y2),L[2],Pt(x2,y2),R[2])==1){
use[11]++;			pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y2),R[2]);
			if(W.first.x<x2&&W.first.x>x1&&W.first.y>y2){
				Pt q=W.first;
				Pt pL=q-Pt(x1,y2);
				Pt pR=q-Pt(x2,y2);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(atan2(y1,x1)-PI/2)*L[1];
				ret+=(PI/2-atan2(y1,x2))*R[1];
				ret+=(atan2(pR.y,pR.x)-PI/2)*R[2];
				ret+=(PI/2-atan2(pL.y,pL.x))*L[2];
				goto end;
			}
			if(W.second.x<x2&&W.second.x>x1&&W.second.y>y2){
				Pt q=W.second;
				Pt pL=q-Pt(x1,y2);
				Pt pR=q-Pt(x2,y2);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(atan2(y1,x1)-PI/2)*L[1];
				ret+=(PI/2-atan2(y1,x2))*R[1];
				ret+=(atan2(pR.y,pR.x)-PI/2)*R[2];
				ret+=(PI/2-atan2(pL.y,pL.x))*L[2];
				goto end;
			}
		}
		if(ls>3&&rs>1&&iCC(Pt(x2,y2),L[3],Pt(x2,y1),R[1])==1){
use[12]++;			pair<Pt,Pt> W=pCC(Pt(x2,y2),L[3],Pt(x2,y1),R[1]);
			if(W.first.x>x2&&W.first.y>y1&&W.first.y<y2){
				Pt q=W.first;
				Pt pL=q-Pt(x2,y2);
				Pt pR=q-Pt(x2,y1);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(-atan2(y1,x2)+atan2(pR.y,pR.x))*R[1];
				ret+=(atan2(y1,x1)-PI/2)*L[1];
				ret+=PI/2*L[2];
				ret+=(-atan2(pL.y,pL.x))*L[3];
				goto end;
			}
			if(W.second.x>x2&&W.second.y>y1&&W.second.y<y2){
				Pt q=W.second;
				Pt pL=q-Pt(x2,y2);
				Pt pR=q-Pt(x2,y1);
				ret+=(PI-atan2(y1,x1))*r;
				ret+=(atan2(y1,x2))*r;
				ret+=(-atan2(y1,x2)+atan2(pR.y,pR.x))*R[1];
				ret+=(atan2(y1,x1)-PI/2)*L[1];
				ret+=PI/2*L[2];
				ret+=(-atan2(pL.y,pL.x))*L[3];
				goto end;
			}
		}
		if(Pt(x1,y1).Abs()>r){
use[13]++;			pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x2,y1));
			if(D.first.x<D.second.x){
				ret+=(PI-atan2(D.first.y,D.first.x))*r;
			}else ret+=(PI-atan2(D.second.y,D.second.x))*r;
		}else{
use[14]++;			ret+=(PI-atan2(y1,x1))*r;
			ret+=(atan2(y1,x1)-PI/2)*L[1];
			ret+=PI/2*L[2];
			ret+=PI/2*L[3];
		}
		if(Pt(x2,y1).Abs()>r){
use[15]++;			pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x2,y1));
			if(D.first.x>D.second.x){
				ret+=(atan2(D.first.y,D.first.x))*r;
			}else{
				ret+=(atan2(D.second.y,D.second.x))*r;
			}
		}else{
use[16]++;			ret+=(atan2(y1,x2))*r;
			ret+=(PI/2-atan2(y1,x2))*R[1];
			ret+=PI/2*R[2];
			ret+=PI/2*R[3];
		}
		end:;
		printf("%.8f\n",ret);
	}
//	for(int i=0;i<17;i++)printf("%d ",use[i]);
}

Compilation error #stdin compilation error #stdout 0s 0KB

stdin

copy

Standard input is empty

compilation info

prog.cpp: In function ‘int main()’:
prog.cpp:56:18: error: ‘Pt’ was not declared in this scope
   if(dSP(Pt(x1,y1),Pt(x2,y1),Pt(0,0))>r){
                  ^
prog.cpp:56:37: error: ‘dSP’ was not declared in this scope
   if(dSP(Pt(x1,y1),Pt(x2,y1),Pt(0,0))>r){
                                     ^
prog.cpp:63:15: error: ‘Pt’ was not declared in this scope
    if(Pt(x1,y2).Abs()<r){
               ^
prog.cpp:72:15: error: ‘Pt’ was not declared in this scope
    if(Pt(x2,y1).Abs()<r){
               ^
prog.cpp:84:31: error: ‘Pt’ was not declared in this scope
    if(ls>2&&rs>2&&iCC(Pt(x1,y2),L[2],Pt(x2,y2),R[2])==1){
                               ^
prog.cpp:84:52: error: ‘iCC’ was not declared in this scope
    if(ls>2&&rs>2&&iCC(Pt(x1,y2),L[2],Pt(x2,y2),R[2])==1){
                                                    ^
prog.cpp:85:24: error: type/value mismatch at argument 1 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
 use[1]++;    pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y2),R[2]);
                        ^
prog.cpp:85:24: error:   expected a type, got ‘Pt’
prog.cpp:85:24: error: type/value mismatch at argument 2 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
prog.cpp:85:24: error:   expected a type, got ‘Pt’
prog.cpp:85:27: error: invalid type in declaration before ‘=’ token
 use[1]++;    pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y2),R[2]);
                           ^
prog.cpp:85:61: error: ‘pCC’ was not declared in this scope
 use[1]++;    pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y2),R[2]);
                                                             ^
prog.cpp:86:10: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
     if(W.first.x<x2&&W.first.x>x1&&W.first.y>y2){
          ^
prog.cpp:86:24: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
     if(W.first.x<x2&&W.first.x>x1&&W.first.y>y2){
                        ^
prog.cpp:86:38: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
     if(W.first.x<x2&&W.first.x>x1&&W.first.y>y2){
                                      ^
prog.cpp:87:9: error: expected ‘;’ before ‘q’
      Pt q=W.first;
         ^
prog.cpp:88:9: error: expected ‘;’ before ‘pL’
      Pt pL=q-Pt(x1,y2);
         ^
prog.cpp:89:9: error: expected ‘;’ before ‘pR’
      Pt pR=q-Pt(x2,y2);
         ^
prog.cpp:93:18: error: ‘pR’ was not declared in this scope
      ret+=(atan2(pR.y,pR.x)-PI/2)*R[2];
                  ^
prog.cpp:94:31: error: ‘pL’ was not declared in this scope
      ret+=(atan2(y2,x1)-atan2(pL.y,pL.x))*L[2];
                               ^
prog.cpp:97:10: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
     if(W.second.x<x2&&W.second.x>x1&&W.second.y>y2){
          ^
prog.cpp:97:25: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
     if(W.second.x<x2&&W.second.x>x1&&W.second.y>y2){
                         ^
prog.cpp:97:40: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
     if(W.second.x<x2&&W.second.x>x1&&W.second.y>y2){
                                        ^
prog.cpp:98:9: error: expected ‘;’ before ‘q’
      Pt q=W.second;
         ^
prog.cpp:99:9: error: expected ‘;’ before ‘pL’
      Pt pL=q-Pt(x1,y2);
         ^
prog.cpp:100:9: error: expected ‘;’ before ‘pR’
      Pt pR=q-Pt(x2,y2);
         ^
prog.cpp:104:18: error: ‘pR’ was not declared in this scope
      ret+=(atan2(pR.y,pR.x)-PI/2)*R[2];
                  ^
prog.cpp:105:31: error: ‘pL’ was not declared in this scope
      ret+=(atan2(y2,x1)-atan2(pL.y,pL.x))*L[2];
                               ^
prog.cpp:109:31: error: ‘Pt’ was not declared in this scope
    if(ls>2&&rs>1&&iCC(Pt(x1,y2),L[2],Pt(x2,y1),R[1])==1){
                               ^
prog.cpp:109:52: error: ‘iCC’ was not declared in this scope
    if(ls>2&&rs>1&&iCC(Pt(x1,y2),L[2],Pt(x2,y1),R[1])==1){
                                                    ^
prog.cpp:110:24: error: type/value mismatch at argument 1 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
 use[2]++;    pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y1),R[1]);
                        ^
prog.cpp:110:24: error:   expected a type, got ‘Pt’
prog.cpp:110:24: error: type/value mismatch at argument 2 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
prog.cpp:110:24: error:   expected a type, got ‘Pt’
prog.cpp:110:27: error: invalid type in declaration before ‘=’ token
 use[2]++;    pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y1),R[1]);
                           ^
prog.cpp:110:61: error: ‘pCC’ was not declared in this scope
 use[2]++;    pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y1),R[1]);
                                                             ^
prog.cpp:111:10: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
     if(W.first.x>x2&&W.first.y>y2){
          ^
prog.cpp:111:24: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
     if(W.first.x>x2&&W.first.y>y2){
                        ^
prog.cpp:112:9: error: expected ‘;’ before ‘q’
      Pt q=W.first;
         ^
prog.cpp:113:9: error: expected ‘;’ before ‘pL’
      Pt pL=q-Pt(x1,y2);
         ^
prog.cpp:114:9: error: expected ‘;’ before ‘pR’
      Pt pR=q-Pt(x2,y1);
         ^
prog.cpp:117:18: error: ‘pR’ was not declared in this scope
      ret+=(atan2(pR.y,pR.x)-atan2(y1,x2))*R[1];
                  ^
prog.cpp:118:31: error: ‘pL’ was not declared in this scope
      ret+=(atan2(y2,x1)-atan2(pL.y,pL.x))*L[2];
                               ^
prog.cpp:121:10: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
     if(W.second.x>x2&&W.second.y>y2){
          ^
prog.cpp:121:25: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
     if(W.second.x>x2&&W.second.y>y2){
                         ^
prog.cpp:122:9: error: expected ‘;’ before ‘q’
      Pt q=W.second;
         ^
prog.cpp:123:9: error: expected ‘;’ before ‘pL’
      Pt pL=q-Pt(x1,y2);
         ^
prog.cpp:124:9: error: expected ‘;’ before ‘pR’
      Pt pR=q-Pt(x2,y1);
         ^
prog.cpp:127:18: error: ‘pR’ was not declared in this scope
      ret+=(atan2(pR.y,pR.x)-atan2(y1,x2))*R[1];
                  ^
prog.cpp:128:31: error: ‘pL’ was not declared in this scope
      ret+=(atan2(y2,x1)-atan2(pL.y,pL.x))*L[2];
                               ^
prog.cpp:132:31: error: ‘Pt’ was not declared in this scope
    if(ls>3&&rs>1&&iCC(Pt(x2,y2),L[3],Pt(x2,y1),R[1])==1){
                               ^
prog.cpp:132:52: error: ‘iCC’ was not declared in this scope
    if(ls>3&&rs>1&&iCC(Pt(x2,y2),L[3],Pt(x2,y1),R[1])==1){
                                                    ^
prog.cpp:133:24: error: type/value mismatch at argument 1 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
 use[3]++;    pair<Pt,Pt> W=pCC(Pt(x2,y2),L[3],Pt(x2,y1),R[1]);
                        ^
prog.cpp:133:24: error:   expected a type, got ‘Pt’
prog.cpp:133:24: error: type/value mismatch at argument 2 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
prog.cpp:133:24: error:   expected a type, got ‘Pt’
prog.cpp:133:27: error: invalid type in declaration before ‘=’ token
 use[3]++;    pair<Pt,Pt> W=pCC(Pt(x2,y2),L[3],Pt(x2,y1),R[1]);
                           ^
prog.cpp:133:61: error: ‘pCC’ was not declared in this scope
 use[3]++;    pair<Pt,Pt> W=pCC(Pt(x2,y2),L[3],Pt(x2,y1),R[1]);
                                                             ^
prog.cpp:134:10: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
     if(W.first.x>x2&&W.first.y>y1&&W.first.y<y2){
          ^
prog.cpp:134:24: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
     if(W.first.x>x2&&W.first.y>y1&&W.first.y<y2){
                        ^
prog.cpp:134:38: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
     if(W.first.x>x2&&W.first.y>y1&&W.first.y<y2){
                                      ^
prog.cpp:135:9: error: expected ‘;’ before ‘q’
      Pt q=W.first;
         ^
prog.cpp:136:9: error: expected ‘;’ before ‘pL’
      Pt pL=q-Pt(x2,y2);
         ^
prog.cpp:137:9: error: expected ‘;’ before ‘pR’
      Pt pR=q-Pt(x2,y1);
         ^
prog.cpp:140:32: error: ‘pR’ was not declared in this scope
      ret+=(-atan2(y1,x2)+atan2(pR.y,pR.x))*R[1];
                                ^
prog.cpp:142:19: error: ‘pL’ was not declared in this scope
      ret+=(-atan2(pL.y,pL.x))*L[3];
                   ^
prog.cpp:145:10: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
     if(W.second.x>x2&&W.second.y>y1&&W.second.y<y2){
          ^
prog.cpp:145:25: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
     if(W.second.x>x2&&W.second.y>y1&&W.second.y<y2){
                         ^
prog.cpp:145:40: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
     if(W.second.x>x2&&W.second.y>y1&&W.second.y<y2){
                                        ^
prog.cpp:146:9: error: expected ‘;’ before ‘q’
      Pt q=W.second;
         ^
prog.cpp:147:9: error: expected ‘;’ before ‘pL’
      Pt pL=q-Pt(x2,y2);
         ^
prog.cpp:148:9: error: expected ‘;’ before ‘pR’
      Pt pR=q-Pt(x2,y1);
         ^
prog.cpp:151:32: error: ‘pR’ was not declared in this scope
      ret+=(-atan2(y1,x2)+atan2(pR.y,pR.x))*R[1];
                                ^
prog.cpp:153:19: error: ‘pL’ was not declared in this scope
      ret+=(-atan2(pL.y,pL.x))*L[3];
                   ^
prog.cpp:158:15: error: ‘Pt’ was not declared in this scope
    if(Pt(x1,y2).Abs()>r){
               ^
prog.cpp:159:24: error: type/value mismatch at argument 1 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
 use[4]++;    pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x1,y2));
                        ^
prog.cpp:159:24: error:   expected a type, got ‘Pt’
prog.cpp:159:24: error: type/value mismatch at argument 2 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
prog.cpp:159:24: error:   expected a type, got ‘Pt’
prog.cpp:159:27: error: invalid type in declaration before ‘=’ token
 use[4]++;    pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x1,y2));
                           ^
prog.cpp:159:61: error: ‘pCL’ was not declared in this scope
 use[4]++;    pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x1,y2));
                                                             ^
prog.cpp:160:10: error: request for member ‘first’ in ‘D’, which is of non-class type ‘int’
     if(D.first.y>0){
          ^
prog.cpp:161:23: error: request for member ‘first’ in ‘D’, which is of non-class type ‘int’
      ret+=(PI-atan2(D.first.y,D.first.x))*r;
                       ^
prog.cpp:161:33: error: request for member ‘first’ in ‘D’, which is of non-class type ‘int’
      ret+=(PI-atan2(D.first.y,D.first.x))*r;
                                 ^
prog.cpp:162:28: error: request for member ‘second’ in ‘D’, which is of non-class type ‘int’
     }else ret+=(PI-atan2(D.second.y,D.second.x))*r;
                            ^
prog.cpp:162:39: error: request for member ‘second’ in ‘D’, which is of non-class type ‘int’
     }else ret+=(PI-atan2(D.second.y,D.second.x))*r;
                                       ^
prog.cpp:168:15: error: ‘Pt’ was not declared in this scope
    if(Pt(x2,y1).Abs()>r){
               ^
prog.cpp:169:24: error: type/value mismatch at argument 1 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
 use[6]++;    pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x2,y1));
                        ^
prog.cpp:169:24: error:   expected a type, got ‘Pt’
prog.cpp:169:24: error: type/value mismatch at argument 2 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
prog.cpp:169:24: error:   expected a type, got ‘Pt’
prog.cpp:169:27: error: invalid type in declaration before ‘=’ token
 use[6]++;    pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x2,y1));
                           ^
prog.cpp:169:61: error: ‘pCL’ was not declared in this scope
 use[6]++;    pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x2,y1));
                                                             ^
prog.cpp:170:10: error: request for member ‘first’ in ‘D’, which is of non-class type ‘int’
     if(D.first.x>D.second.x){
          ^
prog.cpp:170:20: error: request for member ‘second’ in ‘D’, which is of non-class type ‘int’
     if(D.first.x>D.second.x){
                    ^
prog.cpp:171:20: error: request for member ‘first’ in ‘D’, which is of non-class type ‘int’
      ret+=(atan2(D.first.y,D.first.x))*r;
                    ^
prog.cpp:171:30: error: request for member ‘first’ in ‘D’, which is of non-class type ‘int’
      ret+=(atan2(D.first.y,D.first.x))*r;
                              ^
prog.cpp:173:20: error: request for member ‘second’ in ‘D’, which is of non-class type ‘int’
      ret+=(atan2(D.second.y,D.second.x))*r;
                    ^
prog.cpp:173:31: error: request for member ‘second’ in ‘D’, which is of non-class type ‘int’
      ret+=(atan2(D.second.y,D.second.x))*r;
                               ^
prog.cpp:183:14: error: ‘Pt’ was not declared in this scope
   if(Pt(x1,y1).Abs()<r){
              ^
prog.cpp:195:14: error: ‘Pt’ was not declared in this scope
   if(Pt(x2,y1).Abs()<r){
              ^
prog.cpp:208:30: error: ‘Pt’ was not declared in this scope
   if(ls>1&&rs>2&&iCC(Pt(x1,y1),L[1],Pt(x2,y2),R[2])==1){
                              ^
prog.cpp:208:51: error: ‘iCC’ was not declared in this scope
   if(ls>1&&rs>2&&iCC(Pt(x1,y1),L[1],Pt(x2,y2),R[2])==1){
                                                   ^
prog.cpp:209:23: error: type/value mismatch at argument 1 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
 use[8]++;   pair<Pt,Pt> W=pCC(Pt(x1,y1),L[1],Pt(x2,y2),R[2]);
                       ^
prog.cpp:209:23: error:   expected a type, got ‘Pt’
prog.cpp:209:23: error: type/value mismatch at argument 2 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
prog.cpp:209:23: error:   expected a type, got ‘Pt’
prog.cpp:209:26: error: invalid type in declaration before ‘=’ token
 use[8]++;   pair<Pt,Pt> W=pCC(Pt(x1,y1),L[1],Pt(x2,y2),R[2]);
                          ^
prog.cpp:209:60: error: ‘pCC’ was not declared in this scope
 use[8]++;   pair<Pt,Pt> W=pCC(Pt(x1,y1),L[1],Pt(x2,y2),R[2]);
                                                            ^
prog.cpp:210:9: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
    if(W.first.x<x1&&W.first.y>y2){
         ^
prog.cpp:210:23: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
    if(W.first.x<x1&&W.first.y>y2){
                       ^
prog.cpp:211:8: error: expected ‘;’ before ‘q’
     Pt q=W.first;
        ^
prog.cpp:212:8: error: expected ‘;’ before ‘pL’
     Pt pL=q-Pt(x1,y1);
        ^
prog.cpp:213:8: error: expected ‘;’ before ‘pR’
     Pt pR=q-Pt(x2,y2);
        ^
prog.cpp:216:30: error: ‘pL’ was not declared in this scope
     ret+=(atan2(y1,x1)-atan2(pL.y,pL.x))*L[1];
                              ^
prog.cpp:218:17: error: ‘pR’ was not declared in this scope
     ret+=(atan2(pR.y,pR.x)-PI/2)*R[2];
                 ^
prog.cpp:221:9: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
    if(W.second.x<x1&&W.second.y>y2){
         ^
prog.cpp:221:24: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
    if(W.second.x<x1&&W.second.y>y2){
                        ^
prog.cpp:222:8: error: expected ‘;’ before ‘q’
     Pt q=W.second;
        ^
prog.cpp:223:8: error: expected ‘;’ before ‘pL’
     Pt pL=q-Pt(x1,y1);
        ^
prog.cpp:224:8: error: expected ‘;’ before ‘pR’
     Pt pR=q-Pt(x2,y2);
        ^
prog.cpp:227:30: error: ‘pL’ was not declared in this scope
     ret+=(atan2(y1,x1)-atan2(pL.y,pL.x))*L[1];
                              ^
prog.cpp:229:17: error: ‘pR’ was not declared in this scope
     ret+=(atan2(pR.y,pR.x)-PI/2)*R[2];
                 ^
prog.cpp:233:30: error: ‘Pt’ was not declared in this scope
   if(ls>1&&rs>3&&iCC(Pt(x1,y1),L[1],Pt(x1,y2),R[3])==1){
                              ^
prog.cpp:233:51: error: ‘iCC’ was not declared in this scope
   if(ls>1&&rs>3&&iCC(Pt(x1,y1),L[1],Pt(x1,y2),R[3])==1){
                                                   ^
prog.cpp:234:23: error: type/value mismatch at argument 1 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
 use[9]++;   pair<Pt,Pt> W=pCC(Pt(x1,y1),L[1],Pt(x1,y2),R[3]);
                       ^
prog.cpp:234:23: error:   expected a type, got ‘Pt’
prog.cpp:234:23: error: type/value mismatch at argument 2 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
prog.cpp:234:23: error:   expected a type, got ‘Pt’
prog.cpp:234:26: error: invalid type in declaration before ‘=’ token
 use[9]++;   pair<Pt,Pt> W=pCC(Pt(x1,y1),L[1],Pt(x1,y2),R[3]);
                          ^
prog.cpp:234:60: error: ‘pCC’ was not declared in this scope
 use[9]++;   pair<Pt,Pt> W=pCC(Pt(x1,y1),L[1],Pt(x1,y2),R[3]);
                                                            ^
prog.cpp:235:9: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
    if(W.first.x<x1&&W.first.y>y1&&W.first.y<y2){
         ^
prog.cpp:235:23: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
    if(W.first.x<x1&&W.first.y>y1&&W.first.y<y2){
                       ^
prog.cpp:235:37: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
    if(W.first.x<x1&&W.first.y>y1&&W.first.y<y2){
                                     ^
prog.cpp:236:8: error: expected ‘;’ before ‘q’
     Pt q=W.first;
        ^
prog.cpp:237:8: error: expected ‘;’ before ‘pL’
     Pt pL=q-Pt(x1,y1);
        ^
prog.cpp:238:8: error: expected ‘;’ before ‘pR’
     Pt pR=q-Pt(x1,y2);
        ^
prog.cpp:241:30: error: ‘pL’ was not declared in this scope
     ret+=(atan2(y1,x1)-atan2(pL.y,pL.x))*L[1];
                              ^
prog.cpp:244:17: error: ‘pR’ was not declared in this scope
     ret+=(atan2(pR.y,pR.x)-PI)*R[3];
                 ^
prog.cpp:247:9: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
    if(W.second.x<x1&&W.second.y>y1&&W.second.y<y2){
         ^
prog.cpp:247:24: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
    if(W.second.x<x1&&W.second.y>y1&&W.second.y<y2){
                        ^
prog.cpp:247:39: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
    if(W.second.x<x1&&W.second.y>y1&&W.second.y<y2){
                                       ^
prog.cpp:248:8: error: expected ‘;’ before ‘q’
     Pt q=W.second;
        ^
prog.cpp:249:8: error: expected ‘;’ before ‘pL’
     Pt pL=q-Pt(x1,y1);
        ^
prog.cpp:250:8: error: expected ‘;’ before ‘pR’
     Pt pR=q-Pt(x1,y2);
        ^
prog.cpp:253:30: error: ‘pL’ was not declared in this scope
     ret+=(atan2(y1,x1)-atan2(pL.y,pL.x))*L[1];
                              ^
prog.cpp:256:17: error: ‘pR’ was not declared in this scope
     ret+=(atan2(pR.y,pR.x)-PI)*R[3];
                 ^
prog.cpp:260:30: error: ‘Pt’ was not declared in this scope
   if(ls>2&&rs>1&&iCC(Pt(x1,y2),L[2],Pt(x2,y1),R[1])==1){
                              ^
prog.cpp:260:51: error: ‘iCC’ was not declared in this scope
   if(ls>2&&rs>1&&iCC(Pt(x1,y2),L[2],Pt(x2,y1),R[1])==1){
                                                   ^
prog.cpp:261:24: error: type/value mismatch at argument 1 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
 use[10]++;   pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y1),R[1]);
                        ^
prog.cpp:261:24: error:   expected a type, got ‘Pt’
prog.cpp:261:24: error: type/value mismatch at argument 2 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
prog.cpp:261:24: error:   expected a type, got ‘Pt’
prog.cpp:261:27: error: invalid type in declaration before ‘=’ token
 use[10]++;   pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y1),R[1]);
                           ^
prog.cpp:261:61: error: ‘pCC’ was not declared in this scope
 use[10]++;   pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y1),R[1]);
                                                             ^
prog.cpp:262:9: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
    if(W.first.x>x2&&W.first.y>y2){
         ^
prog.cpp:262:23: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
    if(W.first.x>x2&&W.first.y>y2){
                       ^
prog.cpp:263:8: error: expected ‘;’ before ‘q’
     Pt q=W.first;
        ^
prog.cpp:264:8: error: expected ‘;’ before ‘pL’
     Pt pL=q-Pt(x1,y2);
        ^
prog.cpp:265:8: error: expected ‘;’ before ‘pR’
     Pt pR=q-Pt(x2,y1);
        ^
prog.cpp:269:17: error: ‘pR’ was not declared in this scope
     ret+=(atan2(pR.y,pR.x)-atan2(y1,x2))*R[1];
                 ^
prog.cpp:270:22: error: ‘pL’ was not declared in this scope
     ret+=(PI/2-atan2(pL.y,pL.x))*L[2];
                      ^
prog.cpp:273:9: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
    if(W.second.x>x2&&W.second.y>y2){
         ^
prog.cpp:273:24: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
    if(W.second.x>x2&&W.second.y>y2){
                        ^
prog.cpp:274:8: error: expected ‘;’ before ‘q’
     Pt q=W.second;
        ^
prog.cpp:275:8: error: expected ‘;’ before ‘pL’
     Pt pL=q-Pt(x1,y2);
        ^
prog.cpp:276:8: error: expected ‘;’ before ‘pR’
     Pt pR=q-Pt(x2,y1);
        ^
prog.cpp:280:17: error: ‘pR’ was not declared in this scope
     ret+=(atan2(pR.y,pR.x)-atan2(y1,x2))*R[1];
                 ^
prog.cpp:281:22: error: ‘pL’ was not declared in this scope
     ret+=(PI/2-atan2(pL.y,pL.x))*L[2];
                      ^
prog.cpp:285:30: error: ‘Pt’ was not declared in this scope
   if(ls>2&&rs>2&&iCC(Pt(x1,y2),L[2],Pt(x2,y2),R[2])==1){
                              ^
prog.cpp:285:51: error: ‘iCC’ was not declared in this scope
   if(ls>2&&rs>2&&iCC(Pt(x1,y2),L[2],Pt(x2,y2),R[2])==1){
                                                   ^
prog.cpp:286:24: error: type/value mismatch at argument 1 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
 use[11]++;   pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y2),R[2]);
                        ^
prog.cpp:286:24: error:   expected a type, got ‘Pt’
prog.cpp:286:24: error: type/value mismatch at argument 2 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
prog.cpp:286:24: error:   expected a type, got ‘Pt’
prog.cpp:286:27: error: invalid type in declaration before ‘=’ token
 use[11]++;   pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y2),R[2]);
                           ^
prog.cpp:286:61: error: ‘pCC’ was not declared in this scope
 use[11]++;   pair<Pt,Pt> W=pCC(Pt(x1,y2),L[2],Pt(x2,y2),R[2]);
                                                             ^
prog.cpp:287:9: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
    if(W.first.x<x2&&W.first.x>x1&&W.first.y>y2){
         ^
prog.cpp:287:23: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
    if(W.first.x<x2&&W.first.x>x1&&W.first.y>y2){
                       ^
prog.cpp:287:37: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
    if(W.first.x<x2&&W.first.x>x1&&W.first.y>y2){
                                     ^
prog.cpp:288:8: error: expected ‘;’ before ‘q’
     Pt q=W.first;
        ^
prog.cpp:289:8: error: expected ‘;’ before ‘pL’
     Pt pL=q-Pt(x1,y2);
        ^
prog.cpp:290:8: error: expected ‘;’ before ‘pR’
     Pt pR=q-Pt(x2,y2);
        ^
prog.cpp:295:17: error: ‘pR’ was not declared in this scope
     ret+=(atan2(pR.y,pR.x)-PI/2)*R[2];
                 ^
prog.cpp:296:22: error: ‘pL’ was not declared in this scope
     ret+=(PI/2-atan2(pL.y,pL.x))*L[2];
                      ^
prog.cpp:299:9: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
    if(W.second.x<x2&&W.second.x>x1&&W.second.y>y2){
         ^
prog.cpp:299:24: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
    if(W.second.x<x2&&W.second.x>x1&&W.second.y>y2){
                        ^
prog.cpp:299:39: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
    if(W.second.x<x2&&W.second.x>x1&&W.second.y>y2){
                                       ^
prog.cpp:300:8: error: expected ‘;’ before ‘q’
     Pt q=W.second;
        ^
prog.cpp:301:8: error: expected ‘;’ before ‘pL’
     Pt pL=q-Pt(x1,y2);
        ^
prog.cpp:302:8: error: expected ‘;’ before ‘pR’
     Pt pR=q-Pt(x2,y2);
        ^
prog.cpp:307:17: error: ‘pR’ was not declared in this scope
     ret+=(atan2(pR.y,pR.x)-PI/2)*R[2];
                 ^
prog.cpp:308:22: error: ‘pL’ was not declared in this scope
     ret+=(PI/2-atan2(pL.y,pL.x))*L[2];
                      ^
prog.cpp:312:30: error: ‘Pt’ was not declared in this scope
   if(ls>3&&rs>1&&iCC(Pt(x2,y2),L[3],Pt(x2,y1),R[1])==1){
                              ^
prog.cpp:312:51: error: ‘iCC’ was not declared in this scope
   if(ls>3&&rs>1&&iCC(Pt(x2,y2),L[3],Pt(x2,y1),R[1])==1){
                                                   ^
prog.cpp:313:24: error: type/value mismatch at argument 1 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
 use[12]++;   pair<Pt,Pt> W=pCC(Pt(x2,y2),L[3],Pt(x2,y1),R[1]);
                        ^
prog.cpp:313:24: error:   expected a type, got ‘Pt’
prog.cpp:313:24: error: type/value mismatch at argument 2 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
prog.cpp:313:24: error:   expected a type, got ‘Pt’
prog.cpp:313:27: error: invalid type in declaration before ‘=’ token
 use[12]++;   pair<Pt,Pt> W=pCC(Pt(x2,y2),L[3],Pt(x2,y1),R[1]);
                           ^
prog.cpp:313:61: error: ‘pCC’ was not declared in this scope
 use[12]++;   pair<Pt,Pt> W=pCC(Pt(x2,y2),L[3],Pt(x2,y1),R[1]);
                                                             ^
prog.cpp:314:9: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
    if(W.first.x>x2&&W.first.y>y1&&W.first.y<y2){
         ^
prog.cpp:314:23: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
    if(W.first.x>x2&&W.first.y>y1&&W.first.y<y2){
                       ^
prog.cpp:314:37: error: request for member ‘first’ in ‘W’, which is of non-class type ‘int’
    if(W.first.x>x2&&W.first.y>y1&&W.first.y<y2){
                                     ^
prog.cpp:315:8: error: expected ‘;’ before ‘q’
     Pt q=W.first;
        ^
prog.cpp:316:8: error: expected ‘;’ before ‘pL’
     Pt pL=q-Pt(x2,y2);
        ^
prog.cpp:317:8: error: expected ‘;’ before ‘pR’
     Pt pR=q-Pt(x2,y1);
        ^
prog.cpp:320:31: error: ‘pR’ was not declared in this scope
     ret+=(-atan2(y1,x2)+atan2(pR.y,pR.x))*R[1];
                               ^
prog.cpp:323:18: error: ‘pL’ was not declared in this scope
     ret+=(-atan2(pL.y,pL.x))*L[3];
                  ^
prog.cpp:326:9: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
    if(W.second.x>x2&&W.second.y>y1&&W.second.y<y2){
         ^
prog.cpp:326:24: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
    if(W.second.x>x2&&W.second.y>y1&&W.second.y<y2){
                        ^
prog.cpp:326:39: error: request for member ‘second’ in ‘W’, which is of non-class type ‘int’
    if(W.second.x>x2&&W.second.y>y1&&W.second.y<y2){
                                       ^
prog.cpp:327:8: error: expected ‘;’ before ‘q’
     Pt q=W.second;
        ^
prog.cpp:328:8: error: expected ‘;’ before ‘pL’
     Pt pL=q-Pt(x2,y2);
        ^
prog.cpp:329:8: error: expected ‘;’ before ‘pR’
     Pt pR=q-Pt(x2,y1);
        ^
prog.cpp:332:31: error: ‘pR’ was not declared in this scope
     ret+=(-atan2(y1,x2)+atan2(pR.y,pR.x))*R[1];
                               ^
prog.cpp:335:18: error: ‘pL’ was not declared in this scope
     ret+=(-atan2(pL.y,pL.x))*L[3];
                  ^
prog.cpp:339:14: error: ‘Pt’ was not declared in this scope
   if(Pt(x1,y1).Abs()>r){
              ^
prog.cpp:340:24: error: type/value mismatch at argument 1 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
 use[13]++;   pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x2,y1));
                        ^
prog.cpp:340:24: error:   expected a type, got ‘Pt’
prog.cpp:340:24: error: type/value mismatch at argument 2 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
prog.cpp:340:24: error:   expected a type, got ‘Pt’
prog.cpp:340:27: error: invalid type in declaration before ‘=’ token
 use[13]++;   pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x2,y1));
                           ^
prog.cpp:340:61: error: ‘pCL’ was not declared in this scope
 use[13]++;   pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x2,y1));
                                                             ^
prog.cpp:341:9: error: request for member ‘first’ in ‘D’, which is of non-class type ‘int’
    if(D.first.x<D.second.x){
         ^
prog.cpp:341:19: error: request for member ‘second’ in ‘D’, which is of non-class type ‘int’
    if(D.first.x<D.second.x){
                   ^
prog.cpp:342:22: error: request for member ‘first’ in ‘D’, which is of non-class type ‘int’
     ret+=(PI-atan2(D.first.y,D.first.x))*r;
                      ^
prog.cpp:342:32: error: request for member ‘first’ in ‘D’, which is of non-class type ‘int’
     ret+=(PI-atan2(D.first.y,D.first.x))*r;
                                ^
prog.cpp:343:27: error: request for member ‘second’ in ‘D’, which is of non-class type ‘int’
    }else ret+=(PI-atan2(D.second.y,D.second.x))*r;
                           ^
prog.cpp:343:38: error: request for member ‘second’ in ‘D’, which is of non-class type ‘int’
    }else ret+=(PI-atan2(D.second.y,D.second.x))*r;
                                      ^
prog.cpp:350:14: error: ‘Pt’ was not declared in this scope
   if(Pt(x2,y1).Abs()>r){
              ^
prog.cpp:351:24: error: type/value mismatch at argument 1 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
 use[15]++;   pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x2,y1));
                        ^
prog.cpp:351:24: error:   expected a type, got ‘Pt’
prog.cpp:351:24: error: type/value mismatch at argument 2 in template parameter list for ‘template<class _T1, class _T2> struct std::pair’
prog.cpp:351:24: error:   expected a type, got ‘Pt’
prog.cpp:351:27: error: invalid type in declaration before ‘=’ token
 use[15]++;   pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x2,y1));
                           ^
prog.cpp:351:61: error: ‘pCL’ was not declared in this scope
 use[15]++;   pair<Pt,Pt> D=pCL(Pt(0,0),r,Pt(x1,y1),Pt(x2,y1));
                                                             ^
prog.cpp:352:9: error: request for member ‘first’ in ‘D’, which is of non-class type ‘int’
    if(D.first.x>D.second.x){
         ^
prog.cpp:352:19: error: request for member ‘second’ in ‘D’, which is of non-class type ‘int’
    if(D.first.x>D.second.x){
                   ^
prog.cpp:353:19: error: request for member ‘first’ in ‘D’, which is of non-class type ‘int’
     ret+=(atan2(D.first.y,D.first.x))*r;
                   ^
prog.cpp:353:29: error: request for member ‘first’ in ‘D’, which is of non-class type ‘int’
     ret+=(atan2(D.first.y,D.first.x))*r;
                             ^
prog.cpp:355:19: error: request for member ‘second’ in ‘D’, which is of non-class type ‘int’
     ret+=(atan2(D.second.y,D.second.x))*r;
                   ^
prog.cpp:355:30: error: request for member ‘second’ in ‘D’, which is of non-class type ‘int’
     ret+=(atan2(D.second.y,D.second.x))*r;
                              ^

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https://ideone.com/RS3mTT

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C++ (gcc 8.3)

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