Submission #1107022

#	Time	Username	Problem	Language	Result	Execution time	Memory
1107022		dubabuba	Money (IZhO17_money)	C++14	0 / 100	1 ms	504 KiB

money

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


int main() {
	int n;
	cin >> n;

	int a[n];
	for(int i = 0; i < n; i++)
		cin >> a[i];
	
	set<int> s;
	s.insert(-a[0]);

	int cnt = 1;
	for(int i = 1; i < n; i++) {
		auto it = s.lower_bound(-a[i]);
		auto jt = s.upper_bound(-a[i]);
		if(it == s.end()) {
			cnt++;
		}
		else if((*it) == -a[i - 1]) {

		}
		else if((*jt) == -a[i - 1]) {

		}
		else {
			cnt++;
		}
		s.insert(-a[i]);
	}

	cout << cnt << endl;
	return 0;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 16
• Subtask 3: 0 / 20
• Subtask 4: 0 / 55