제출 #1155698

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1155698		fatman87878	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++20	100 / 100	29 ms	5136 KiB

Main

#include<bits/stdc++.h>
using namespace std;
#define IOS cin.tie(nullptr)->sync_with_stdio(0),cin.exceptions(cin.failbit);
#define lb(x) (x)&-(x)
#define all(x) (x).begin(),(x).end()
#define ll long long

constexpr int maxN=2e5+5;

int n;

ll val[maxN],l[maxN],r[maxN];

int main(){
    IOS
    cin>>n;
    for(int i = 1;i<=n;i++)cin>>val[i];
    for(int i = 1;i<=n;i++){
        l[i] = l[i-1];
        if(val[i-1]>=val[i])l[i]+=val[i-1]-val[i]+1;
    }
    for(int i = n;i>=1;i--){
        r[i] = r[i+1];
        if(val[i+1]>=val[i])r[i]+=val[i+1]-val[i]+1;
    }
    ll ans = 1e18;
    for(int i = 1;i<=n;i++)ans = min(ans,max(l[i],r[i]));
    cout<<ans<<'\n';
}

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