제출 #1349523

#제출 시각아이디문제언어결과실행 시간메모리
1349523mozkunDucks And Buttons (NOI25_duckbuttons)C++20
100 / 100
44 ms1976 KiB
#include <bits/stdc++.h>
using namespace std;
#define int long long

vector<int> a;

signed main() {
    int n, d;
    cin >> n >> d;
    a.assign(n, 0);
    for (auto & x : a) cin >> x;

    int h = 0, ans = 0;
    for (int i = n - 1; i >= 1; i--) {
        if (a[i] > h) {
            ans += (a[i] - h) * i;
            h = a[i];
        }
    }

    cout << ans << "\n";
    return 0;
}
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