Submission #391594

#	Time	Username	Problem	Language	Result	Execution time	Memory
391594		l3nl3	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++17	0 / 100	1 ms	332 KiB

Main

#include <bits/stdc++.h>

#define int long long

using namespace std;

const int mxsz = 2e5 + 10;
const int inf = 1e9 + 7;

int n, a[mxsz], p[mxsz], s[mxsz], mn=inf;

signed main () {
    cin >> n;
    for (int i = 1; i <= n; i++) {
        cin >> a[i];
        p[i] = p[i-1] + max(0ll, 1 - (a[i] - a[i-1]));
    }
    for (int i = n-1; i >= 1; i--) {
        s[i] = s[i+1] + max(0ll, (a[i+1] - a[i]) + 1);
    }
    for (int i = 1; i <= n; i++) {
        mn = min(mn, max(p[i], s[i]));
    }
    cout << mn;
}

• Subtask 1: 0 / 40
• Subtask 2: 0 / 60