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Submission #1003890

# Submission time Handle Problem Language Result Execution time Memory
1003890 2024-06-20T19:39:04 Z vjudge1 Zagrade (COI20_zagrade) C++17
0 / 100
 1 ms 452 KB 
#include <bits/stdc++.h>
using namespace std;

int query(int a, int b)
{
	cout << "? " << a << " " << b << endl;
	int resp; cin >> resp;
	return resp;
}

void solve(int N, int Q)
{
	string resp(N, '.'), resto;
	for (int i = 1; i <= N; i++)
	{
		if (resto.empty()) resto.push_back(i);
		else if(query(resto.back(), i))
		{
			resp[resto.back()-1] = '(';
			resp[i-1] = ')';
			resto.pop_back();
		}
		else resto.push_back(i);
	}
	// cerr << "resp: " << resp << '\n';
	// cerr << "resto: "; for (auto x : resto) cerr << " "; cerr << '\n';
	int sz = resto.size();
	for (int i = 0; i < sz/2; i++) resp[resto[i]-1] = ')';
	for (int i = sz/2; i < sz; i++) resp[resto[i]-1] = '(';
	cout << "! " << resp << endl;
}

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	int N, Q;
	cin >> N >> Q;
	solve(N, Q);
}

Subtask #1
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Runtime error 1 ms 344 KB Execution killed with signal 13
3 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Runtime error 1 ms 452 KB Execution killed with signal 13
3 Halted 0 ms 0 KB -

Subtask #3
0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Runtime error 1 ms 344 KB Execution killed with signal 13
3 Halted 0 ms 0 KB -

Subtask #4
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Runtime error 1 ms 344 KB Execution killed with signal 13
3 Halted 0 ms 0 KB -