oj.uz

Submission #1044150

# Submission time Handle Problem Language Result Execution time Memory
1044150 2024-08-05T07:37:59 Z alex_2008 COVID tests (CEOI24_covid) C++14
22.19 / 100
 3040 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;
	}
	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 Correct 0 ms 344 KB Output is correct

Subtask #1
10.0 / 10.0

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

Subtask #2
12.189999996 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 344 KB Output is correct (P=0.001, F=15.1, Q=10.7) -> 90.00 points
2 Correct 85 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=52.9) -> 78.89 points
3 Correct 162 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=114.3) -> 49.51 points
4 Correct 449 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=277.6) -> 32.16 points
5 Correct 617 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=388.7) -> 27.17 points
6 Correct 1133 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=663.5) -> 21.19 points
7 Correct 1655 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=1002.6) -> 17.38 points
8 Correct 2420 ms 344 KB Output is correct (P=0.158765, F=639.1, Q=1497.8) -> 14.12 points
9 Correct 3040 ms 344 KB Output is correct (P=0.2, F=731.4, Q=1898.6) -> 12.19 points