oj.uz

Submission #1110657

# Submission time Handle Problem Language Result Execution time Memory
1110657 2024-11-10T07:09:11 Z Nomio Weighting stones (IZhO11_stones) C++17
100 / 100
 30 ms 5880 KB 
#include<bits/stdc++.h>
#define meta int tm = tl + (tr - tl) / 2, x = (i << 1) + 1, y = x + 1
using namespace std;

const int maxn = 1e5 + 1;
int st[maxn * 4 + 1] {}, mn[maxn * 4 + 1] {}, mx[maxn * 4 + 1] {};

void update(int i, int tl, int tr, int X, int v) {
	if(tl == tr) {
		st[i] = mn[i] = mx[i] = v;
		return;
	}
	meta;
	if(X <= tm) update(x, tl, tm, X, v);
	else update(y, tm + 1, tr, X, v);
	st[i] = st[x] + st[y];
	mn[i] = min(mn[x] + st[y], mn[y]);
	mx[i] = max(mx[x] + st[y], mx[y]); 
}

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	int n;
	cin >> n;
	for(int i = 0; i < n; i++) {
		int a, t;
		cin >> a >> t;
		a--;
		if(t == 1) update(0, 0, n - 1, a, 1);
		else update(0, 0, n - 1, a, -1);
		if(mx[0] <= 0) cout << '<' << '\n';
		else if(mn[0] >= 0) cout << '>' << '\n';
		else cout << '?' << '\n';
	}
	return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4432 KB Output is correct
2 Correct 1 ms 4432 KB Output is correct
3 Correct 1 ms 4432 KB Output is correct
4 Correct 1 ms 4432 KB Output is correct
5 Correct 1 ms 4432 KB Output is correct
6 Correct 1 ms 4432 KB Output is correct
7 Correct 1 ms 4432 KB Output is correct
8 Correct 1 ms 4432 KB Output is correct
9 Correct 1 ms 4432 KB Output is correct
10 Correct 4 ms 4856 KB Output is correct
11 Correct 17 ms 5124 KB Output is correct
12 Correct 27 ms 5456 KB Output is correct
13 Correct 24 ms 5712 KB Output is correct
14 Correct 25 ms 5880 KB Output is correct
15 Correct 30 ms 5636 KB Output is correct
16 Correct 25 ms 5704 KB Output is correct
17 Correct 25 ms 5700 KB Output is correct
18 Correct 26 ms 5712 KB Output is correct
19 Correct 30 ms 5712 KB Output is correct
20 Correct 25 ms 5712 KB Output is correct
21 Correct 25 ms 5716 KB Output is correct
22 Correct 26 ms 5696 KB Output is correct
23 Correct 25 ms 5712 KB Output is correct
24 Correct 25 ms 5712 KB Output is correct
25 Correct 25 ms 5704 KB Output is correct