제출 #1174359

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1174359		Hamed_Ghaffari	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++20	0 / 100	0 ms	528 KiB

Main

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

const int MXN = 2e5+5;

int n, a[MXN];
long long dp[MXN];

int32_t main() {
    cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(0);
    cin >> n;
    for(int i=1; i<=n; i++) {
        cin >> a[i];
        dp[i] = dp[i-1] + (a[i-1]>=a[i] ? a[i-1]-a[i]+1 : 0);
    }
    long long ans = 1e18, val=0;
    for(int i=n; i>=1; i--) {
        if(a[i]+dp[i]<=a[i+1])
            ans = min(ans, dp[i]+val + a[i+1]-a[i]-dp[i] + 1);
        else
            ans = min(ans, dp[i]+val - min({dp[i], (i<n && a[i+2]>=a[i+1] ? a[i+2]-a[i+1]+1 : 0ll), a[i]+dp[i]-a[i+1]-1}));
        val += (a[i+1]>=a[i] ? a[i+1]-a[i]+1 : 0);
    }
    cout << ans << '\n';
    return 0;
}

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