Submission #1230004

#	Time	Username	Problem	Language	Result	Execution time	Memory
1230004		antromancap	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++20	100 / 100	14 ms	4964 KiB

Main

#include <bits/stdc++.h>

using namespace std;

const int N = 2e5 + 5;
int n;
long long f[N], g[N], a[N];

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);

	cin >> n;
	for (int i = 1; i <= n; i++) cin >> a[i];
	for (int i = 1; i <= n; i++) f[i] = f[i - 1] + max(0LL, a[i - 1] - a[i] + 1);
	for (int i = n; i; i--) g[i] = g[i + 1] + max(0LL, a[i + 1] - a[i] + 1);
	long long res = 1e18;
	for (int i = 1; i <= n; i++) {
		res = min(res, max(f[i], g[i]));
	}
	cout << res;
}

• Subtask 1: 40 / 40
• Subtask 2: 60 / 60