제출 #1203442

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1203442		LucaIlie	Fish 3 (JOI24_fish3)	C++20	9 / 100	2096 ms	5160 KiB

Main

#include <bits/stdc++.h>

using namespace std;

const int MAX_N = 3e5;
const int MAX_LOG_N = 18;
const long long INF = 1e18;
int n;
long long d;
int nxt[MAX_LOG_N + 1][MAX_N + 1];
long long a[MAX_N + 1], sum[MAX_N + 1], surplus[MAX_N + 1], sumsurplus[MAX_N + 1];
long long cost[MAX_LOG_N + 1][MAX_N + 1];

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    cin >> n >> d;
    for (int i = 1; i <= n; i++) 
        cin >> a[i];

    int q;
    cin >> q;
    for (; q > 0; q--) {
        int l, r;
        cin >> l >> r;

        long long ans = 0;
        long long h = a[r];
        for (int i = r - 1; i >= l; i--) {
            long long k = (a[i] - h + d - 1) / d;
            k = max(k, 0LL);
            h = a[i] - k * d;
            ans += k;
        }
        cout << (h < 0 ? -1 : ans) << "\n";
    }

    return 0;
}

• Subtask 1: 9 / 9
• Subtask 2: 0 / 7
• Subtask 3: 0 / 28
• Subtask 4: 0 / 20
• Subtask 5: 0 / 36