Submission #4067887

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Source Code Expand

#include <bits/stdc++.h>
#define int long long
using namespace std;

signed main() {
  int N,X;cin>>N>>X;
  std::vector<int> v(N);
  for(int i=0;i<N;i++)cin>>v[i];
  int ans=0;int a=0;
  while(X){
    if(X%2)ans+=v[a];
    a++;X/=2;
  }
  cout<<ans<<endl;
}

Submission Info

Judge Result