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  1. #include <bits/stdc++.h>
  2. #include <float.h>
  3. using namespace std;
  4. int main(){
  5.     double a,b,c,x,y,z,qqq=0,result=0;
  6.     int T;
  7.     scanf("%d",&T);
  8.     for(int i=0;i<T;i++){
  9.         scanf("%lf %lf %lf %lf %lf",&a,&b,&x,&y,&z);
  10.         c=0;
  11.         result = 0;
  12.         qqq = 0;
  13.         while(1){
  14.             double dis,tim;
  15.             if(qqq==0){
  16.                 qqq=1;
  17.                 dis = abs(c-b);
  18.                 tim = dis/(y+z);
  19.                 if(abs(a-b)/(x+y)<tim){
  20.                     printf("1\n");
  21.                     result += x*(abs(a-b)/(x+y));
  22.                     printf("%lf\n",result);
  23.                     break;
  24.                 }
  25.                 a+=x*tim;
  26.                 b-=y*tim;
  27.                 c+=z*tim;
  28.                 result+=z*tim;
  29.                 if(fabsf(a - b) <= FLT_EPSILON&&fabsf(b - c) <= FLT_EPSILON){printf("3\n%lf\n",result);break;}
  30.                 if(fabsf(z - y) <= FLT_EPSILON&&z<y){
  31.                     printf("2\n");
  32.                     dis = abs(a-b);
  33.                     tim = dis/(x+y);
  34.                     result += y*tim;
  35.                     printf("%lf\n",result);
  36.                     break;
  37.                 }
  38.             }
  39.             else{
  40.                 qqq=0;
  41.                 dis = abs(c-a);
  42.                 tim = dis/(x+z);
  43.                 if(abs(a-b)/(x+y)<tim){
  44.                     printf("2\n");
  45.                     result += y*(abs(a-b)/(x+y));
  46.                     printf("%lf\n",result);
  47.                     break;
  48.                 }
  49.                 a+=x*tim;
  50.                 b-=y*tim;
  51.                 c-=z*tim;
  52.                 result+=z*tim;
  53.                 if(fabsf(a - b) <= FLT_EPSILON&&fabsf(b - c) <= FLT_EPSILON){printf("3\n%lf\n",result);break;}
  54.                 if(fabsf(z - x) <= FLT_EPSILON&&z<x){
  55.                     printf("1\n");
  56.                     dis = abs(a-b);
  57.                     tim = dis/(x+y);
  58.                     result += x*tim;
  59.                     printf("%lf\n",result);
  60.                     break;
  61.                 }
  62.             }
  63.         }
  64.     }
  65. }
  66.  
Success #stdin #stdout 0s 15240KB
comments (?)
stdin
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2
-5 8
3 4 5
-4 8
4 5 1
stdout
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3
9.285714
3
1.333333
https://ideone.com/nsoP4g
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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