Submission #4643566

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Source Code Expand

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

using ll = long long;
using ull = unsigned long long;

const double PI = acos(-1);
const int inf = 2e9;
const ll INF = 2e18;
const ll MOD = 1e9+7;

#define sz(s) (s).size()
#define pb push_back
#define fi first
#define se second
#define REP(i,n) for (int i = 0; i<n; i++)
#define ALL(a) begin(a), end(a)

int main (void) {
    int N,X;
    cin>>N>>X;
    vector<int> a(N);
    ll ans = 0;
    REP(i,N) {
        int a;
        cin>>a;
        if (X%2 == 1) ans+=a;
        X /= 2;
    }
    cout<<ans<<endl;
    return 0;
}

Submission Info

Judge Result