#include<stdio.h>
#include<algorithm>
struct tree{
inline void upd(int i){n+=i,x+=i,c+=i;}
int n,x;
int c;
}T[1<<18];
void update(int x,int idx,int l,int r,int root)
{
if(l==r){
T[root].upd(idx);
return;
}
T[root<<1].upd(T[root].c);
T[root<<1|1].upd(T[root].c);
T[root].c = 0;
int m = (l+r)>>1;
update(x,idx,l,m,root<<1);
if(x>m)update(x,idx,m+1,r,root<<1|1);
T[root].n = std::min(T[root<<1].n, T[root<<1|1].n);
T[root].x = std::max(T[root<<1].x, T[root<<1|1].x);
}
int main()
{
int n;
scanf("%d",&n);
for(int i=0,x,y;i<n;i++){
scanf("%d%d",&x,&y);
if(y==1)update(x,1,1,n,1);
else update(x,-1,1,n,1);
if(T[1].n>=0)printf(">\n");
else if(T[1].x<=0)printf("<\n");
else printf("?\n");
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
4156 KB |
Output is correct - 73 tokens |
2 |
Correct |
0 ms |
4156 KB |
Output is correct - 89 tokens |
3 |
Correct |
0 ms |
4156 KB |
Output is correct - 221 tokens |
4 |
Correct |
0 ms |
4156 KB |
Output is correct - 21 tokens |
5 |
Correct |
0 ms |
4156 KB |
Output is correct - 369 tokens |
6 |
Correct |
0 ms |
4156 KB |
Output is correct - 492 tokens |
7 |
Correct |
8 ms |
4156 KB |
Output is correct - 945 tokens |
8 |
Correct |
14 ms |
4156 KB |
Output is correct - 1237 tokens |
9 |
Correct |
11 ms |
4156 KB |
Output is correct - 1105 tokens |
10 |
Correct |
688 ms |
4156 KB |
Output is correct - 8921 tokens |
11 |
Execution timed out |
1000 ms |
4156 KB |
Program timed out |
12 |
Execution timed out |
1000 ms |
4156 KB |
Program timed out |
13 |
Execution timed out |
1000 ms |
4156 KB |
Program timed out |
14 |
Execution timed out |
1000 ms |
4156 KB |
Program timed out |
15 |
Execution timed out |
1000 ms |
4156 KB |
Program timed out |
16 |
Execution timed out |
1000 ms |
4156 KB |
Program timed out |
17 |
Execution timed out |
1000 ms |
4156 KB |
Program timed out |
18 |
Execution timed out |
1000 ms |
4156 KB |
Program timed out |
19 |
Execution timed out |
1000 ms |
4156 KB |
Program timed out |
20 |
Execution timed out |
1000 ms |
4156 KB |
Program timed out |
21 |
Execution timed out |
1000 ms |
4156 KB |
Program timed out |
22 |
Execution timed out |
1000 ms |
4156 KB |
Program timed out |
23 |
Execution timed out |
1000 ms |
4156 KB |
Program timed out |
24 |
Execution timed out |
1000 ms |
4156 KB |
Program timed out |
25 |
Execution timed out |
1000 ms |
4156 KB |
Program timed out |