Submission #36379

#	Time	Username	Problem	Language	Result	Execution time	Memory
36379		cheater2k	Money (IZhO17_money)	C++14	0 / 100	0 ms	9988 KiB

money

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

const int N = 1000005;

int n, a[N];
int T[N];
int ans;

void upd(int x) { for (; x < N; x += x & -x) T[x]++; }
int get(int x) { int res = 0; for (; x > 0; x -= x & -x) res += T[x]; return res; }

int main() {
	ios_base::sync_with_stdio(false); cin.tie(0);
	cin >> n;
	for (int i = 1; i <= n; ++i) cin >> a[i];

	ans = 1;
	upd(a[1]);
	for (int i = 2; i <= n; ++i) {
		if (a[i] < a[i-1] || get(a[i] - 1) - get(a[i-1]) != 0) 
			++ans; // can't put a[i] and a[i-1] in a subsegment
		upd(a[i]);
		//cerr << i << ' ' << ans << endl;
	}

	cout << ans << endl;
}

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