Submission #7490018

---

Source Code Expand

#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
#define REP(i,n) for(ll i = 0;i < n; i++)
int main(){
    ll n,x;
    int cnt= 0;
    cin >> n >> x;
    stringstream ss;
    ss << bitset<32>(x);
    string s = ss.str();
    vector<int> A(n);
    REP(i,n) {
        cin >> A[i];
        if(s[s.length()-i-1]=='1') cnt+= A[i];
    }
    cerr << s << endl;
    cout << cnt << endl;
    return 0;
}

Submission Info

Judge Result