Submission #1004083

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1004083	2024-06-21T04:51:23 Z	vjudge1	Zagrade (COI20_zagrade)	C++17	100 / 100	554 ms	1808 KB

zagrade

#include <bits/stdc++.h>
using namespace std;

#define ll long long
int const N=2e5+5;
int const mod=1e9+7;


int main(){
	int n,q;
	cin>>n>>q;
	int a=0;
	string s="";
	vector<int> st;
	for(int i=0;i<n;i++){
		if(st.size()==0){
			st.push_back(i);
			s+='?';
			continue;
		}
		cout<<"? "<<(st.back())+1<<' '<<i+1<<endl;
		bool bl;
		cin>>bl;
		if(bl){
			s+=')';
			s[st.back()]='(';
			st.pop_back();
		}
		else{
			s+='?';
			st.push_back(i);
		}
	}
	int sz=st.size();
	for(int i=0;i<sz;i++){
		if(i<sz/2)
			s[st[i]]=')';
		else
			s[st[i]]='(';
	}
	cout<<"! "<<s<<endl;
	return 0;
}

Compilation message

zagrade.cpp: In function 'int main()':
zagrade.cpp:12:6: warning: unused variable 'a' [-Wunused-variable]
   12 |  int a=0;
      |      ^

Subtask #1

14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	3 ms	432 KB	Output is correct
3	Correct	6 ms	344 KB	Output is correct
4	Correct	3 ms	344 KB	Output is correct
5	Correct	5 ms	344 KB	Output is correct
6	Correct	5 ms	344 KB	Output is correct
7	Correct	4 ms	344 KB	Output is correct
8	Correct	5 ms	344 KB	Output is correct

Subtask #2

7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	5 ms	344 KB	Output is correct
3	Correct	5 ms	344 KB	Output is correct
4	Correct	5 ms	444 KB	Output is correct
5	Correct	5 ms	344 KB	Output is correct
6	Correct	4 ms	436 KB	Output is correct
7	Correct	5 ms	344 KB	Output is correct
8	Correct	6 ms	344 KB	Output is correct

Subtask #3

57.0 / 57.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	284 ms	856 KB	Output is correct
3	Correct	503 ms	1128 KB	Output is correct
4	Correct	449 ms	872 KB	Output is correct
5	Correct	513 ms	800 KB	Output is correct
6	Correct	493 ms	1312 KB	Output is correct
7	Correct	502 ms	1728 KB	Output is correct
8	Correct	554 ms	956 KB	Output is correct

Subtask #4

22.0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	492 ms	1808 KB	Output is correct
3	Correct	517 ms	1092 KB	Output is correct
4	Correct	507 ms	1148 KB	Output is correct
5	Correct	486 ms	964 KB	Output is correct
6	Correct	527 ms	1108 KB	Output is correct
7	Correct	528 ms	1204 KB	Output is correct
8	Correct	538 ms	988 KB	Output is correct