Submission #1068686

#	Time	Username	Problem	Language	Result	Execution time	Memory
1068686		Alebn	COVID tests (CEOI24_covid)	C++14	0 / 100	4014 ms	344 KiB

Main

#include <bits/stdc++.h>
#define int long long

using namespace std;

int n, t, mid;
double p;
string res, ask;
char temp;
void bs(int l, int r) {
    if(l == r) res[l] = '1';
    else {
        mid = (l + r) / 2;
        for(int i = 0; i < n; i++) {
            if(l <= i && i <= mid) ask[i] = '1';
            else ask[i] = '0';
        }
        cout << "Q " << ask << endl;
        cin >> temp;
        if(temp == 'P') bs(l, mid);
        //
        for(int i = 0; i < n; i++) {
            if(mid + 1 <= i && i <= r) ask[i] = '1';
            else ask[i] = '0';
        }
        cout << "Q " << ask << endl;
        cin >> temp;
        if(temp == 'P') bs(mid + 1, r);
    }
}

void solve() {
    res = string(n, '0');
    ask = string(n, '1');
    cout << "Q " << ask << endl;
    cin >> temp;
    if(temp == 'P') bs(0, n - 1);
    cout << "A " << res << endl;
    cin >> temp;
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n >> p >> t;
    while(t--) solve();
}

• Subtask 0: 0 / 0
• Subtask 1: 0 / 10
• Subtask 2: 0 / 90