Submission #3005597

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Source Code Expand

#include<bits/stdc++.h>
 using namespace std;
  int main()
  {
      int n,i,j,k;
      long long a[100000];
      long long s=0;
      cin>>n>>k;
      for(i=1;i<=n;i++)
      cin>>a[i];
      for(i=1;i<=n-k+1;i++)
      for(j=1;j<=k;j++)
      s+=a[i+j-1];
      cout<<s<<endl;
      return 0;
  }

Submission Info

Judge Result