oj.uz

Submission #1044193

# Submission time Handle Problem Language Result Execution time Memory
1044193 2024-08-05T07:56:28 Z alex_2008 COVID tests (CEOI24_covid) C++14
10 / 100
 81 ms 344 KB 
#include <iostream>
#include <cmath>
#include <algorithm>
#include <vector>
#include <map>
#include <queue>
#include <stack>
typedef long long ll;
using namespace std;
const int N = 2e5 + 10;
int n, t;
long double p;
bool ch(int l, int r) {
	string s = string(n, '0');
	for (int i = l - 1; i < r; i++) {
		s[i] = '1';
	}
	cout << "Q " << s << endl;
	char x;
	cin >> x;
	if (x == 'P') return true;
	return false;
}
int main() {
	cin >> n >> p >> t;
	if (t == 1) {
		string ans = string(n, '0');
		for (int i = 1; i <= n; i++) {
			cout << "Q ";
			string s = string(n, '0');
			s[i - 1] = '1';
			cout << s << endl;
			char x;
			cin >> x;
			if (x == 'P') ans[i - 1] = '1';
		}
		cout << "A " << ans << endl;
		char x;
		cin >> x;
		return 0;
	}
  	if (p <= 0.01) {
	while (t--) {
		string answ = string(n, '0');
		int last = 0;
		while (1) {
			if (!ch(last + 1, n)) {
				break;
			}
			int l = last + 1, r = n - 1, ans = last;
			while (l <= r) {
				int mid = (l + r) / 2;
				if (!ch(last + 1, mid)) {
					ans = mid;
					l = mid + 1;
				}
				else r = mid - 1;
			}
			answ[ans] = '1';
			last = ans + 1;
		}
		cout << "A " << answ << endl;
		char x;
		cin >> x;
	}
	return 0;
    }
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Unexpected end of file - token expected
2 Halted 0 ms 0 KB -

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 344 KB Output is correct
2 Correct 6 ms 344 KB Output is correct
3 Correct 4 ms 344 KB Output is correct
4 Correct 2 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 4 ms 344 KB Output is correct
9 Correct 3 ms 344 KB Output is correct
10 Correct 5 ms 344 KB Output is correct
11 Correct 4 ms 344 KB Output is correct
12 Correct 4 ms 344 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 3 ms 344 KB Output is correct
15 Correct 4 ms 344 KB Output is correct
16 Correct 6 ms 344 KB Output is correct
17 Correct 4 ms 344 KB Output is correct

Subtask #2
0.0 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 344 KB Output is correct (P=0.001, F=15.1, Q=10.7) -> 90.00 points
2 Correct 81 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=52.9) -> 78.89 points
3 Incorrect 0 ms 344 KB Unexpected end of file - token expected
4 Halted 0 ms 0 KB -