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  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. int main()
  6. {
  7.    int n,x,a,b,c,arr[20];
  8.    cin>>n>>x;
  9.    bool m=false ;
  10.    for(int i=1;i<=n;i++){
  11.     cin>>arr[i];
  12.    }for(int i=1;i<=x;i++){
  13.    cin>>a>>b>>c;
  14.     arr[a]-=c;
  15.     arr[b]+=c;
  16.    }
  17.    for(int i=1;i<=n;i++){
  18.     if(arr[i]<0){
  19.         m=true ;
  20.         break;
  21.     }
  22.    }
  23.    if(m==false){
  24.     cout<<"S"<<endl;
  25.    } else {
  26.    cout<<"N"<<endl;
  27.    }
  28.     return 0;
  29. }
  30.  
Success #stdin #stdout 0s 15232KB
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stdin
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Standard input is empty
stdout
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N
https://ideone.com/SeFec3
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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