Submission #966527

#	Time	Username	Problem	Language	Result	Execution time	Memory
966527		yellowtoad	Money (IZhO17_money)	C++17	0 / 100	1 ms	348 KiB

money

#include <iostream>
#include <set>
using namespace std;

int n, a[1000010], cnt;
set<int> bst;
set<int>::iterator iter;

int main() {
  	ios::sync_with_stdio(0);
  	cin.tie(0); cout.tie(0);
	cin >> n;
	for (int i = 1; i <= n; i++) cin >> a[i];
	for (int i = 1; i <= n; i++) {
		if (a[i-1] > a[i]) cnt++;
		else {
			iter = bst.upper_bound(a[i-1]);
			if ((iter != bst.end()) && (*iter < a[i])) cnt++;
		}
		bst.insert(a[i]);
	}
	cout << cnt+1 << endl;
}

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