Submission #1153823

#	Time	Username	Problem	Language	Result	Execution time	Memory
1153823		kxd	Po (COCI21_po)	C++20	70 / 70	6 ms	1608 KiB

Main

#include <bits/stdc++.h>
//#define DEBUG 1106
#define int long long
#define ll long long
#define ld long double
#define pb emplace_back
#define p_q priority_queue
#define m_p make_pair
#define pii pair<int,int>
#define endl '\n'
#define INIT ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define FOR(i,a,b) for(int i = a; i <= b; i++)
#define forn(i,n) for (int i = 0; i < n; i++)
#define forn1(i,n) for (int i = 1; i <= n; i++)
#define all(x) x.begin(),x.end()
#define ft first
#define sd second
#define lowbit(x) (x&(-x))
#define chmax(x,y) x=max(x,y)
#define chmin(x,y) x=min(x,y)
#ifdef DEBUG
#define debug(x) cout << #x << ": " << x << endl;
#else
#define debug(x) 1106;
#endif

using namespace std;
const int N = 1e6+5;
const int M = 2005;
const int inf = 1e9;
const int INF = 1e18;
const int MOD = 1e9+7;

int a[N];

signed main() {
	INIT
	#ifdef DEBUG
	freopen("input.txt", "r", stdin);
	#endif
	///////////
	int n;
	cin >> n;
	forn1(i,n) cin >> a[i];
	int c = 0;
	stack<int> st;
	forn1(i,n) {
		while(!st.empty() && st.top()>a[i]) st.pop();
		if(a[i] && (st.empty() || st.top()<a[i])) {
			st.push(a[i]);
			c++;
		}
	}
	cout << c;
}

• Subtask 1: 70 / 70