#include <bits/stdc++.h>
using namespace std;
int query(int l,int r){
int ans;
cout << "? " << l << " " << r << endl;
cin >> ans;
return ans;
}
int main(){
int n,q;
cin >> n >> q;
vector<int> v = {};
string s = string(n,' ');
for(int i = 1;i <= n;i++){
if((int)v.size() < 1){
v.push_back(i);
}
else if(query(v.back(),i) == 1){
s[v.back() - 1] = '(';
s[i - 1] = ')';
v.pop_back();
}
else{
v.push_back(i);
}
}
for(int i = 0;i < (int)v.size();i++){
if(2 * i < (int)v.size()){
s[v[i] - 1] = ')';
}
else{
s[v[i] - 1] = '(';
}
}
cout << "! " << s << endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
5 ms |
364 KB |
Output is correct |
3 |
Correct |
11 ms |
364 KB |
Output is correct |
4 |
Correct |
9 ms |
256 KB |
Output is correct |
5 |
Correct |
10 ms |
364 KB |
Output is correct |
6 |
Correct |
9 ms |
364 KB |
Output is correct |
7 |
Correct |
9 ms |
364 KB |
Output is correct |
8 |
Correct |
8 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
364 KB |
Output is correct |
2 |
Correct |
10 ms |
364 KB |
Output is correct |
3 |
Correct |
9 ms |
364 KB |
Output is correct |
4 |
Correct |
9 ms |
492 KB |
Output is correct |
5 |
Correct |
9 ms |
364 KB |
Output is correct |
6 |
Correct |
10 ms |
364 KB |
Output is correct |
7 |
Correct |
9 ms |
364 KB |
Output is correct |
8 |
Correct |
8 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
364 KB |
Output is correct |
2 |
Correct |
409 ms |
468 KB |
Output is correct |
3 |
Correct |
788 ms |
484 KB |
Output is correct |
4 |
Correct |
735 ms |
516 KB |
Output is correct |
5 |
Correct |
843 ms |
484 KB |
Output is correct |
6 |
Correct |
695 ms |
476 KB |
Output is correct |
7 |
Correct |
931 ms |
1068 KB |
Output is correct |
8 |
Correct |
848 ms |
468 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
734 ms |
1468 KB |
Output is correct |
3 |
Correct |
857 ms |
868 KB |
Output is correct |
4 |
Correct |
802 ms |
916 KB |
Output is correct |
5 |
Correct |
863 ms |
1140 KB |
Output is correct |
6 |
Correct |
814 ms |
824 KB |
Output is correct |
7 |
Correct |
772 ms |
868 KB |
Output is correct |
8 |
Correct |
849 ms |
484 KB |
Output is correct |