oj.uz

Submission #1003788

# Submission time Handle Problem Language Result Execution time Memory
1003788 2024-06-20T17:49:33 Z vjudge1 Zagrade (COI20_zagrade) C++17
0 / 100
 1 ms 344 KB 
#include<bits/stdc++.h>
using namespace std;

//cout.flush();
const int MAXN=100010;
int resp[MAXN];

int main(){
	int n, q;
	cin >> n >> q;
	cout << "? 1 " << n;
	cout.flush();

	int ehVal;
	cin >> ehVal;

	if(ehVal){
		resp[1] = 1;
		int a = 1, f = 0;
		stack <int> s;
		s.push(1);
		int l = 1;
		for(int i=2; i<n; i++){
			if(l==0){
				a++;
				resp[i] = 1;
				s.push(i);
				l = i;
				continue;
			}
			cout << "? " << l << " " << i;
			cout.flush();
			int val;
			cin >> val;
			if(val){
				f++;
				resp[i] = 2;
				s.pop();
				if(s.empty()) l = 0;
				else l = s.top();
			}
			else{
				a++;
				resp[i] = 1;
				s.push(i);
				l = i;
			}
		}

		resp[n] = 2;

		cout << "! ";
		for(int i=1; i<=n; i++){
			if(resp[i]==1) cout << "(";
			else cout << ")";
		}
		return 0;
	}

	resp[1] = 2;
	
}

Subtask #1
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 0 ms 344 KB Time limit exceeded (wall clock)
2 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1 ms 344 KB Time limit exceeded (wall clock)
2 Halted 0 ms 0 KB -

Subtask #3
0 / 57.0

# Verdict Execution time Memory Grader output
1 Execution timed out 0 ms 344 KB Time limit exceeded (wall clock)
2 Halted 0 ms 0 KB -

Subtask #4
0 / 22.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1 ms 344 KB Time limit exceeded (wall clock)
2 Halted 0 ms 0 KB -