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Submission #166413

# Submission time Handle Problem Language Result Execution time Memory
166413 2019-12-02T08:01:40 Z Dovran Weighting stones (IZhO11_stones) C++11
100 / 100
 499 ms 5628 KB 
#include <bits/stdc++.h>
#define N 100009
#define pii pair <int, int>
#define ff first
#define ss second
#define pb push_back
#define ll long long

using namespace std;

int n, v[4*N][3], c[4*N];

void upd(int nd, int l, int r, int x, int y){
	if(v[nd/2][2]!=0)
		v[nd][2]+=v[nd/2][2], v[nd][1]+=v[nd/2][2], c[nd]+=v[nd/2][2];
	if(l>x)
		return;
	if(r<=x){
		v[nd][2]+=y;
		v[nd][1]+=y, c[nd]+=y;
		return;
	}
	int md=(l+r)/2;
	upd(nd*2, l, md, x, y);
	upd(nd*2+1, md+1, r, x, y);
	v[nd][1]=max(v[nd*2][1], v[nd*2+1][1]);
	c[nd]=min(c[nd*2], c[nd*2+1]);
	v[nd][2]=0;
}

int main(){
	cin>>n;
	for(int i=1; i<=n; i++){
		int x, y;
		cin>>x>>y;
		if(y==1)
			upd(1, 1, n, x, -1);
		
		else
			upd(1, 1, n, x, 1);
		
		if (v[1][1] <= 0)
			cout<<">\n";	
		else if (c[1] >= 0)
			cout<<"<\n";	
			
		else
			cout<<"?\n";	
	}
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 6 ms 376 KB Output is correct
7 Correct 6 ms 248 KB Output is correct
8 Correct 7 ms 368 KB Output is correct
9 Correct 7 ms 376 KB Output is correct
10 Correct 37 ms 888 KB Output is correct
11 Correct 219 ms 2880 KB Output is correct
12 Correct 361 ms 5456 KB Output is correct
13 Correct 376 ms 5368 KB Output is correct
14 Correct 378 ms 5412 KB Output is correct
15 Correct 394 ms 5464 KB Output is correct
16 Correct 376 ms 5496 KB Output is correct
17 Correct 400 ms 5452 KB Output is correct
18 Correct 499 ms 5484 KB Output is correct
19 Correct 377 ms 5488 KB Output is correct
20 Correct 374 ms 5440 KB Output is correct
21 Correct 371 ms 5520 KB Output is correct
22 Correct 380 ms 5368 KB Output is correct
23 Correct 376 ms 5404 KB Output is correct
24 Correct 377 ms 5420 KB Output is correct
25 Correct 379 ms 5628 KB Output is correct