Submission #1183313

#	Time	Username	Problem	Language	Result	Execution time	Memory
1183313		alterio	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++20	100 / 100	14 ms	5084 KiB

Main

#include <bits/stdc++.h>

using namespace std;

#define endl '\n'
#define ll long long
#define all(x) (x).begin(), (x).end()

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n;
    cin >> n;
    vector<ll> v(n);
    for (int i = 0; i < n; i++) cin >> v[i];
    vector<ll> ansL(n), ansR(n);
    for (int i = 1; i < n; i++) ansL[i] = ansL[i - 1] + max(0LL, v[i - 1] - v[i] + 1);
    for (int i = n - 2; i >= 0; i--) ansR[i] = ansR[i + 1] + max(0LL, v[i + 1] - v[i] + 1);
    ll ans = LLONG_MAX;
    for (int i = 0; i < n; i++) ans = min(ans, max(ansL[i], ansR[i]));
    cout << ans;
}

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