Submission #530277

#	Time	Username	Problem	Language	Result	Execution time	Memory
530277		Tw_28e7	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++17	0 / 100	0 ms	204 KiB

Main

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

#define LL long long
#define pLL pair<long long, long long>
#define F first
#define S second
#define pb push_back
#define rz resize
#define all(x) x.begin(), x.end()
//#define cin fin
void Star_Brust_Stream()
{
	ios_base::sync_with_stdio(false);
	cin.tie(0);

	return;
}
const LL INF = 1e18;
const LL MOD = 1e9 + 7;

int main()
{
	Star_Brust_Stream();
	LL n;
	cin >> n;
	vector<LL> v(n);
	for (int i = 0; i < n; i++)
	{
		cin >> v[i];
	}
	LL l = 0, r = n - 1;
	LL cnt = 0;
	while (l < r)
	{
		while (v[l] < v[l + 1])
		{
			l++;
		}
		while (v[r - 1] > v[r])
		{
			r--;
		}
		cnt += min(v[l] - v[l + 1], v[r] - v[r - 1]) + 1;
		l++;
		r--;
	}
	cout << cnt << endl;
	// system("pause");
	return 0;
}

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