Submission #830972

#	Time	Username	Problem	Language	Result	Execution time	Memory
830972		OAleksa	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++14	100 / 100	20 ms	4976 KiB

Main

#include <bits/stdc++.h>
#define f first
#define s second
using namespace std; 
#define int long long
signed main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	int tt = 1;
	//cin >> tt;
	while(tt--) {
		int n;
		cin >> n;
		vector<int> a(n);
		for(int i = 0;i < n;i++)
			cin >> a[i];
		vector<int> p(n), s(n);
		for(int i = 1;i < n;i++)
			p[i] = p[i - 1] + max(0ll, a[i - 1] + 1 - a[i]);
		for(int i = n - 2;i >= 0;i--)
			s[i] = s[i + 1] + max(0ll, a[i + 1] + 1 - a[i]);
		int ans = 1e18;
		for(int i = 0;i < n;i++)
			ans = min(ans, max(s[i], p[i]));
		cout << ans;
	}
   return 0;
}

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