제출 #1198790

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1198790		BigBadBully	COVID tests (CEOI24_covid)	C++17	10 / 100	2089 ms	432 KiB

Main

// Online C++ compiler to run C++ program online
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ff first
#define ss second
int n,t;
bool guess(int l,int r){
    cout << "Q ";
    for (int i = 0; i < n; i++)
    {
        if (i >= l && i <= r)
            cout << '1';
        else
            cout << '0';
    }
    cout << endl;
  
    char la;
    cin >> la;
    if (la == 'P')
        return 1;
    return 0;
}
int calc( int l, int r)
{
    if (l==r)
        return l;
    int mid = l+r>>1;
    if (guess(l,mid))
        return calc(l,mid);
    return calc(mid+1,r);
}
void linear(vector<bool>&mask,int mile)
{
    int prev = 0;
    while(prev<n)
    {
        if (guess(prev,min(n-1,prev+mile)))
            for (int i = prev;i <= min(n-1,prev+mile); i++)
                if (guess(i,i))
                    mask[i] = 1;
        prev = min(n,prev+mile+1);
    }
    
    
}
signed main() {
    double p;
    ios::sync_with_stdio(0);
    cin >> n >> p >> t;
    double tte = 1-p;
    int cnt = 1;
    if (tte <= 0.5)
    {
    while(tte>0.5)
        tte*=1-p,cnt++;
    if (abs(tte-0.5) > abs(tte/(1-p) - 0.5))
        cnt--;
    }
    while(t--)
    {
        vector<bool> mask(n,0);
        int prev = -1;
        while(prev < n-1)
        if (guess(prev+1,min(n-1,prev+1+cnt)))
            mask[prev = calc(prev+1,min(n-1,prev+1+cnt))] = 1;
        else
            prev = prev+1+cnt;
        cout << "A ";
        for (int i = 0; i < n; i++)
            cout << (char)(mask[i]+'0');
        cout << endl;
        char c;
        cin >> c;
        if(c=='C')
            continue;
        else
            break;
    }
}

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