提出 #39010504

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ソースコード 拡げる

#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
#define rep(i,n) for (int i = 0; i < (n); ++i)
using namespace std;
using ll = long long;
using P = pair<int,int>;
#define chmax(x,y) x = max(x,y);
#define chmin(x,y) x = min(x,y);
const int di[] = {-1, 0, 1, 0};
const int dj[] = {0, -1, 0, 1};
const int INF = 1001001001;
const ll LINF = 1001002003004005006ll;
const double PI = acos(-1);



int main() {
    int n, m;
    cin >> n >> m;
    vector<int> a(n), b(m);
    rep(i,n) cin >> a[i];
    rep(i,m) cin >> b[i];
    int ans = 0;
    rep(i,m) ans += a[b[i]-1];
    cout << ans << endl;
    return 0;
}

提出情報

ジャッジ結果