Submission #458616

#	Time	Username	Problem	Language	Result	Execution time	Memory
458616		tempus	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++17	100 / 100	37 ms	3828 KiB

Main

#include <bits/stdc++.h>

#define ll long long
#define endl '\n'
#define ios ios_base::sync_with_stdio(0); cout.tie(0); cin.tie(0);

using namespace std;

int main() {
    ios
    int n;
    cin >> n;
    ll a[n + 2];
    for (int i = 0; i < n; ++ i) {
        cin >> a[i];
    }
    ll f = 0, s = 0;
    for (int i = 0; i < n - 1; ++ i) {
        s += max(0ll, a[i + 1] - a[i] + 1);
    }
    ll ans = s;
    for (int i = 1; i < n; ++ i) {
        s -= max(0ll, a[i] - a[i - 1] + 1);
        f += max(0ll, a[i - 1] - a[i] + 1);
        ans = min(ans, max(f, s));
    }
    cout << ans;
    return 0;
}

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