oj.uz

Submission #1044377

# Submission time Handle Problem Language Result Execution time Memory
1044377 2024-08-05T09:06:31 Z alex_2008 COVID tests (CEOI24_covid) C++14
88.66 / 100
 1042 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;
string p;
bool ch(int l, int r) {
	if (l > r) return false;
	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;
	}
	int block;
	if (p == "0.001" || p == "0.005256") block = 1000;
	if (p == "0.005256") block = 81;
	if (p == "0.011546") block = 50;
	if (p == "0.028545") block = 31;
	if (p == "0.039856") block = 19;
	if (p == "0.068648") block = 15;
	if (p == "0.104571") block = 7;
	if (p == "0.158765") block = 5;
	if (p == "0.2") block = 3;
	while (t--) {
		string answ = string(n, '0');
		for (int i = 1; i <= n; i += block) {
			int mx_r = min(n, i + block - 1);
			int last = i - 1;
			while (1) {
				if (!ch(last + 1, mx_r)) {
					break;
				}
				int l = last + 1, r = mx_r - 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 1 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 4 ms 344 KB Output is correct
3 Correct 6 ms 344 KB Output is correct
4 Correct 4 ms 344 KB Output is correct
5 Correct 3 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 4 ms 344 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 4 ms 344 KB Output is correct
12 Correct 5 ms 344 KB Output is correct
13 Correct 6 ms 344 KB Output is correct
14 Correct 6 ms 344 KB Output is correct
15 Correct 5 ms 344 KB Output is correct
16 Correct 7 ms 344 KB Output is correct
17 Correct 4 ms 344 KB Output is correct

Subtask #2
78.66 / 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 59 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=49.8) -> 90.00 points
3 Correct 121 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=94.1) -> 90.00 points
4 Correct 274 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=193.9) -> 85.70 points
5 Correct 378 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=252.3) -> 82.01 points
6 Correct 580 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=379.4) -> 78.66 points
7 Correct 707 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=504.0) -> 80.95 points
8 Correct 878 ms 344 KB Output is correct (P=0.158765, F=639.1, Q=651.1) -> 83.71 points
9 Correct 1042 ms 344 KB Output is correct (P=0.2, F=731.4, Q=750.3) -> 81.57 points