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  1. #include<stdio.h>
  2. #include<math.h>
  3. int main()
  4.  {
  5.    int b,c;
  6.    float a,n,t;
  7.    scanf("%f %f",&n,&t);
  8.    if(n<=t-0.5 && fmod(n,5.0)==0)
  9.    {
  10.     a=(float)n-t-0.5;
  11.     printf("%.2f",a);
  12.    }
  13.    else printf("%.2f",t);
  14.    return 0;
  15.  }
Success #stdin #stdout 0s 16048KB
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30 120
stdout
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-90.50
https://ideone.com/gfK2ig
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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