Submission #926665

#	Time	Username	Problem	Language	Result	Execution time	Memory
926665		VMaksimoski008	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++14	100 / 100	60 ms	6272 KiB

Main

#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main() {
    int n;
    cin >> n;
    
    vector<int> v(n+2);
    vector<ll> pref(n+2), suf(n+2);
    for(int i=1; i<=n; i++) cin >> v[i];
    for(int i=2; i<=n; i++) pref[i] = max(0, v[i-1]-v[i]+1) + pref[i-1];
    for(int i=n-1; i>=1; i--) suf[i] = max(0, v[i+1]-v[i]+1) + suf[i+1];

    ll ans = 1e18;
    for(int i=1; i<=n; i++) ans = min(ans, max(pref[i], suf[i]));
    cout << ans << '\n';
    return 0;
}

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