Submission #910048

#	Time	Username	Problem	Language	Result	Execution time	Memory
910048		vjudge1	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++17	100 / 100	64 ms	6996 KiB

Main

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main() {
	ll n;
	cin>>n;
	vector<ll>vegetales(n);
	for(ll i=0;i<n;i++){
		cin>>vegetales[i];
	}
	vector<ll>a(n);
	a[0]=0;
	for(ll i=1;i<n;i++){
		a[i]=a[i-1]+max(0LL,vegetales[i-1]-vegetales[i]+1);
	}
	reverse(vegetales.begin(),vegetales.end());
	vector<ll>b(n);
	b[0]=0;
	for(ll i=1;i<n;i++){
		b[i]=b[i-1]+max(0LL,vegetales[i-1]-vegetales[i]+1);
	}
	ll ans=1e18;
	reverse(b.begin(),b.end());
	for(ll i=0;i<n;i++){
		ans=min(ans,max(a[i],b[i]));
	}
        //XD
	cout<<ans<<"\n";
	return 0;
}

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