#include <stdio.h>
#include<math.h>
float distance(int n1,int m1,int n2,int m2){
float d=0;float sum=0;
sum+=d;
return sum;
}
int main(void) {
int t,n,i,j;float sum=0;
while(t--){
int r=0,s=0,a=0,b=0;
int x[100002],y[100002],p[100002],q[100002],min[100002],max[100002];
for(i=0;i<n;i++){
scanf("%d %d",&x
[i
],&y
[i
]);}
for(j=0;j<10001;j++){
for(i=0;i<n;i++){
if(j==x[i]){
p[r++]=x[i];q[s++]=y[i];
}
}}
for(i=0,j=i+1;i<n&&j<n;i++,j++){
if(p[i]==p[j]){
if(q[i]>q[j]){min[a++]=p[i]; max[b++]=q[i];}
else{min[a++]=p[i]; max[b++]=q[j];}
}
else{min[a++]=p[i]; max[b++]=q[i];}
}
for(i=0;i<n;i++){
distance(min[i],max[i],min[i+1],max[i+1]);
}
}
}
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