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  1. #include<iostream>
  2. using namespace std;
  3. int main(){
  4.  
  5. long int n,x,cost[100];
  6. cin>>n>>x;
  7. for(int i=0;i<n;i++)
  8. cin>>cost[i];
  9. int i=0,flag=0,s=0,first;
  10. first=cost[0];
  11. while(i<n)
  12. {
  13.     s+=cost[i];
  14.     if(s>x){
  15.     s-=first;
  16.     first++;
  17.     }
  18.     if(s==x)
  19.     {flag=1;
  20.     break;}
  21. i++;
  22. }
  23. if(flag==0)
  24. cout<<"no";
  25. else cout<<"yes";
  26. }
  27.  
Runtime error #stdin #stdout 3.24s 2684KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
https://ideone.com/U272Yc
language:
C++ 4.3.2 (gcc-4.3.2)
created:
9 years ago
visibility:
public

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