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  1. #include<bits/stdc++.h>
  2.  
  3.  
  4. using namespace std;
  5.  
  6. int main()
  7. {
  8.     int n, k ;
  9.     cin>>n>>k;
  10.     double a[n+1], b[n+1];
  11.     a[0]=0, b[0]=0;
  12.     double m[n], p[n], sum=0, max=0;
  13.     for(int i=0; i<n; i++)
  14.     {
  15.         cin>>m[i];
  16.         a[i+1]=a[i]+m[i];
  17.     }
  18.     for(int i=0; i<n; i++)
  19.     {
  20.         cin>>p[i];
  21.         b[i+1]=b[i]+p[i];
  22.     }
  23.     for(int i=1; i<=n; i++)
  24.     {
  25.         if(abs(a[i]/b[i]-k)<=0.00000001) sum=a[i];
  26.         if(sum>max) max=sum;
  27.     }
  28.     (max==0)? cout<<-1: cout<<max;
  29. }
Success #stdin #stdout 0s 4496KB
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stdin
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3 2
4 4 4 
2 2 2
stdout
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12
https://ideone.com/LR5zMf
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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