제출 #375187

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
375187		dimashii	Sjeckanje (COCI21_sjeckanje)	C++17	15 / 110	2078 ms	548 KiB

Main

#include <bits/stdc++.h>

#define ll long long

using namespace std;

const int mxN = 1e6 + 5, mod = 1e9 + 7;
const ll inf = 1e18;

ll n, q, a[mxN];

ll d[mxN];

int main() {
	ios :: sync_with_stdio(false), cin.tie(nullptr);
	cin >> n >> q;
	for (int i = 1; i <= n; ++i)
		cin >> a[i];
	while (q--) {
		int l, r, x;
		cin >> l >> r >> x;
		for (int i = l; i <= r; ++i)
			a[i] += x;
		for (int i = 1; i <= n; ++i)
			d[i] = -inf;
		for (int i = 1; i <= n; ++i) {
			ll mn = inf, mx = -inf;
			for (int j = i; j > 0; j--) {
				mn = min(mn, a[j]);
				mx = max(mx, a[j]);
				d[i] = max(d[i], d[j - 1] + mx - mn);
			}
		}
		cout << d[n] << '\n';
	}
	return 0;
}

• Subtask 1: 15 / 15
• Subtask 2: 0 / 40
• Subtask 3: 0 / 55