Submission #1125656

#TimeUsernameProblemLanguageResultExecution timeMemory
1125656TsaganaMoney (IZhO17_money)C++17
100 / 100
872 ms55232 KiB
#include<bits/stdc++.h>

#define IOS ios_base::sync_with_stdio(false);cin.tie();cout.tie();
#define all(x) x.begin(), x.end()
#define int long long
#define pq priority_queue
#define eb emplace_back
#define lb lower_bound
#define ub upper_bound
#define pb push_back
#define pp pop_back
#define F first
#define S second

using namespace std;

set<int> s;
int a[1000001];

void solve () {
	int n; cin >> n;
	for (int i = 0; i < n; i++) cin >> a[i];
	
	s.insert(1e9);
	int l = 0, mx, ans = 0;
	while (l < n) {
		mx = *s.ub(a[l]);
		s.insert(a[l]);
		
		while (l+1 < n && a[l] <= a[l+1] && a[l+1] <= mx) {l++; s.insert(a[l]);}
		
		l++; ans++;
	}
	cout << ans;
}
signed main() {IOS solve(); return 0;}
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