Submission #716450

#	Time	Username	Problem	Language	Result	Execution time	Memory
716450		immccn123	Po (COCI21_po)	C++14	70 / 70	66 ms	2192 KiB

Main

#include <iostream>
#include <stack>
#define ll long long
using namespace std;
ll a[100001], n, ans = 0;
stack<int> s;
int main()
{
	cin >> n;
	for (int i = 1; i <= n; i++) {
		cin >> a[i];
	}
	for (int i = 1; i <= n; i++) {
		while (!s.empty() && s.top() > a[i]) s.pop();
		if (!s.empty() && s.top() == a[i]) continue;
		if (a[i]) s.push(a[i]), ans++;
	}
	cout << ans;
	return 0;
}

• Subtask 1: 70 / 70