oj.uz

Submission #345450

# Submission time Handle Problem Language Result Execution time Memory
345450 2021-01-07T11:07:59 Z pggp Zagrade (COI20_zagrade) C++14
0 / 100
 1 ms 364 KB 
#include <bits/stdc++.h>

using namespace std;

int N, Q;
char output[250000];

int main(){
	cin.tie(0);
	cout.tie(0);
	ios_base::sync_with_stdio(false);
	for (int i = 0; i < N; ++i)
	{
		output[i] = '?';
	}

	cin >> N >> Q;
	stack < int > last_non_valid;
	for (int i = 0; i < N; ++i)
	{
		if(last_non_valid.empty()){
			last_non_valid.push(i);
			continue;
		}
		cout << "? " << last_non_valid.top() + 1 << " " << i + 1 << endl;
		bool valid;
		cin >> valid;
		if(valid){
			output[last_non_valid.top()] = '(';
			output[i] = ')';
			last_non_valid.pop();
		}
		else{
			last_non_valid.push(i);
		}
	}
	int s = last_non_valid.size();
	for (int i = 0; i < s/2; ++i)
	{
		output[last_non_valid.top()] = '(';
		last_non_valid.pop();
	}
	for (int i = s/2; i < s; ++i)
	{
		output[last_non_valid.top()] = ')';
		last_non_valid.pop();
	}
	for (int i = 0; i < N; ++i)
	{
		cout << output[i];
	}
	cout << endl;
}

Subtask #1
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 364 KB Incorrect query ()
2 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 364 KB Incorrect query )(
2 Halted 0 ms 0 KB -

Subtask #3
0 / 57.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 364 KB Incorrect query (())
2 Halted 0 ms 0 KB -

Subtask #4
0 / 22.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 364 KB Incorrect query ))((
2 Halted 0 ms 0 KB -