제출 #1134441

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1134441		Agageldi	Money (IZhO17_money)	C++17	100 / 100	563 ms	55228 KiB

money

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

#define ll long long
#define N 2000005
#define pb push_back
#define ff first
#define ss second
#define sz(s) (int)s.size()

ll n, t, ind, a[N], b[N], gr;
set <ll> nw;
deque <ll> v;

int main () {
	ios::sync_with_stdio(0);cin.tie(0);
	cin >> n;
	bool tr = 0;
	for(int i = 1; i <= n; i++) {
		cin >> a[i];
		if(i == 1 || !tr && a[i] >= a[i-1]) {
			nw.insert(a[i]);
			ind = i + 1;
			continue;
		}
		tr = 1;
	}
	gr = 1;
	if(ind == n + 1) {
		cout << gr << '\n';
		return 0;
	}
	for(int i = ind; i <= n; i++) {
		if(sz(v) && v[sz(v) - 1] <= a[i]) {
			v.pb(a[i]);
			continue;
		}
		while(sz(v) > 0) {
			auto p = nw.upper_bound(v[0]);
			if(p == nw.end()) {
				while(sz(v) > 0) {
					nw.insert(v[0]);
					v.pop_front();
				}
				gr++;
				break;
			}
			gr++;
			while(sz(v) > 0 && v[0] <= *p) {
				nw.insert(v[0]);
				v.pop_front();
			}
		}
		v.pb(a[i]);
	}
	while(sz(v) > 0) {
		auto p = nw.upper_bound(v[0]);
		if(p == nw.end()) {
			while(sz(v) > 0) {
				nw.insert(v[0]);
				v.pop_front();
			}
			gr++;
			break;
		}
		gr++;
		while(sz(v) > 0 && v[0] <= *p) {
			nw.insert(v[0]);
			v.pop_front();
		}
	}
	cout << gr << '\n';
}

• Subtask 1: 9 / 9
• Subtask 2: 16 / 16
• Subtask 3: 20 / 20
• Subtask 4: 55 / 55