#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <limits.h>
#include <stack>
#include <queue>
#include <map>
#include <set>
#include <algorithm>
#include <string>
#include <functional>
#include <vector>
#include <numeric>
#include <deque>
#include <utility>
#include <bitset>
#include <iostream>
using namespace std;
typedef long long lint;
typedef long double llf;
typedef pair<int, int> pi;
struct seg1{
int tree[270000], lazy[270000];
void lazydown(int p){
tree[2*p] += lazy[p];
tree[2*p+1] += lazy[p];
lazy[2*p] += lazy[p];
lazy[2*p+1] += lazy[p];
lazy[p] = 0;
}
void add(int s, int e, int ps, int pe, int p, int v){
if(e < ps || pe < s) return;
if(s <= ps && pe <= e){
tree[p] += v;
lazy[p] += v;
return;
}
lazydown(p);
int pm = (ps + pe) / 2;
add(s, e, ps, pm, 2*p, v);
add(s, e, pm+1, pe, 2*p+1, v);
tree[p] = min(tree[2*p], tree[2*p+1]);
}
}seg1, seg2;
int main(){
int q;
scanf("%d",&q);
for(int i=0; i<q; i++){
int a, b;
scanf("%d %d",&b,&a);
if(a == 1) seg1.add(1, b, 1, q, 1, 1), seg2.add(1, b, 1, q, 1, -1);
else seg1.add(1, b, 1, q, 1, -1), seg2.add(1, b, 1, q, 1, 1);
if(seg1.tree[1] >= 0){
puts(">");
}
else if(seg2.tree[1] >= 0){
puts("<");
}
else puts("?");
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
5948 KB |
Output is correct - 73 tokens |
2 |
Correct |
0 ms |
5948 KB |
Output is correct - 89 tokens |
3 |
Correct |
0 ms |
5948 KB |
Output is correct - 221 tokens |
4 |
Correct |
0 ms |
5948 KB |
Output is correct - 21 tokens |
5 |
Correct |
0 ms |
5948 KB |
Output is correct - 369 tokens |
6 |
Correct |
1 ms |
5948 KB |
Output is correct - 492 tokens |
7 |
Correct |
0 ms |
5948 KB |
Output is correct - 945 tokens |
8 |
Correct |
0 ms |
5948 KB |
Output is correct - 1237 tokens |
9 |
Correct |
0 ms |
5948 KB |
Output is correct - 1105 tokens |
10 |
Correct |
7 ms |
5948 KB |
Output is correct - 8921 tokens |
11 |
Correct |
42 ms |
5948 KB |
Output is correct - 56110 tokens |
12 |
Correct |
75 ms |
5948 KB |
Output is correct - 90207 tokens |
13 |
Correct |
60 ms |
5948 KB |
Output is correct - 100000 tokens |
14 |
Correct |
64 ms |
5948 KB |
Output is correct - 100000 tokens |
15 |
Correct |
63 ms |
5948 KB |
Output is correct - 100000 tokens |
16 |
Correct |
65 ms |
5948 KB |
Output is correct - 100000 tokens |
17 |
Correct |
64 ms |
5948 KB |
Output is correct - 100000 tokens |
18 |
Correct |
68 ms |
5948 KB |
Output is correct - 99999 tokens |
19 |
Correct |
73 ms |
5948 KB |
Output is correct - 99999 tokens |
20 |
Correct |
70 ms |
5948 KB |
Output is correct - 99999 tokens |
21 |
Correct |
75 ms |
5948 KB |
Output is correct - 100000 tokens |
22 |
Correct |
66 ms |
5948 KB |
Output is correct - 100000 tokens |
23 |
Correct |
62 ms |
5948 KB |
Output is correct - 100000 tokens |
24 |
Correct |
73 ms |
5948 KB |
Output is correct - 100000 tokens |
25 |
Correct |
76 ms |
5948 KB |
Output is correct - 100000 tokens |