Submission #1358734

#	Time	Username	Problem	Language	Result	Execution time	Memory
1358734		putuputu	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++20	100 / 100	41 ms	5036 KiB

Main

#include<bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
    int n;
    cin >> n;
    int a[n];
    for(int i=0; i<n; i++){
        cin >> a[i];
    }
    vector<int> l(n+2, 0), r(n+2, 0);
    for(int i=1; i<n; i++){
        int nd=max(0LL, a[i-1]-a[i]+1);
        l[i]=l[i-1]+nd;
    }
    for(int i=n-2; i>=0; i--){
        int nd=max(0LL, a[i+1]-a[i]+1);
        r[i]=r[i+1]+nd;
    }
    int ans=1e18;
    for(int i=0; i<n; i++){
        ans=min(ans, max(r[i], l[i]));
    }
    cout << ans;
}

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