#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[N], c[N];
vector<int>a, b;
int r, l;
int main(){
cin>>n;
for(int i=1; i<=n; i++){
int x, y;
cin>>x>>y;
if(y==1){
a.pb(x), l=max(l, x);
for(int j=x; j>=1; j--)
c[j]--;
}
else{
b.pb(x), r=max(r, x);
for(int j=x; j>=1; j--)
c[j]++;
}
int mn=1e9, mx=0;
for(int j=n; j>=1; j--){
mn=min(mn, c[j]);
mx=max(mx, c[j]);
}
if(l>r and mx<=0)
cout<<">\n";
else if(r>l and mn>=0)
cout<<"<\n";
else
cout<<"?\n";
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
2 ms |
256 KB |
Output is correct |
3 |
Correct |
3 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
256 KB |
Output is correct |
5 |
Correct |
3 ms |
256 KB |
Output is correct |
6 |
Correct |
4 ms |
376 KB |
Output is correct |
7 |
Correct |
6 ms |
376 KB |
Output is correct |
8 |
Correct |
8 ms |
376 KB |
Output is correct |
9 |
Correct |
9 ms |
376 KB |
Output is correct |
10 |
Correct |
136 ms |
488 KB |
Output is correct |
11 |
Execution timed out |
1067 ms |
880 KB |
Time limit exceeded |
12 |
Halted |
0 ms |
0 KB |
- |