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Submission #773577

# Submission time Handle Problem Language Result Execution time Memory
773577 2023-07-05T06:56:53 Z vjudge1 Zagrade (COI20_zagrade) C++17
71 / 100
 787 ms 700 KB 
#include<bits/stdc++.h>
using namespace std;
#define lalala ios_base::sync_with_stdio(false);cin.tie(NULL);
//#define endl "\n"
#define ll long long
#define N 200005
#define pb push_back

int main(){
	lalala;
	int n,q;cin>>n>>q;
	stack<int> s;
	char str[n+1];
	s.push(1);
	str[1]='(';
	for(int i=2;i<=n;i++){
		if(s.size()){
			int a=s.top();
			cout<<"? "<<a<<" "<<i<<endl;
			int x;cin>>x;
			if(x==1){
				str[i]=')';
				s.pop();
			}
			else{
				str[i]='(';
				s.push(i);
			}
		}
		else{
			s.push(i);
			str[i]='(';
			continue;
		}
	}
	cout<<"! ";
	for(int i=1;i<=n;i++)cout<<str[i];
	cout<<endl;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 4 ms 208 KB Output is correct
3 Correct 6 ms 208 KB Output is correct
4 Correct 7 ms 208 KB Output is correct
5 Correct 5 ms 220 KB Output is correct
6 Correct 7 ms 208 KB Output is correct
7 Correct 6 ms 208 KB Output is correct
8 Correct 8 ms 208 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB Mismatch at position 1. Expected ), found (
2 Halted 0 ms 0 KB -

Subtask #3
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 374 ms 392 KB Output is correct
3 Correct 585 ms 396 KB Output is correct
4 Correct 674 ms 388 KB Output is correct
5 Correct 552 ms 384 KB Output is correct
6 Correct 452 ms 396 KB Output is correct
7 Correct 732 ms 700 KB Output is correct
8 Correct 787 ms 392 KB Output is correct

Subtask #4
0 / 22.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 208 KB Mismatch at position 1. Expected ), found (
2 Halted 0 ms 0 KB -