oj.uz

Submission #1068587

# Submission time Handle Problem Language Result Execution time Memory
1068587 2024-08-21T10:48:51 Z BigBadBully COVID tests (CEOI24_covid) C++17
10 / 100
 7000 ms 344 KB 
// 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;
    else
    return 0;
}
void calc(vector<bool>& mask, int l, int r)
{
    if (l==r)
    {
        mask[l] = 1;
        return;
    }
    int mid = l+r>>1;
    if (guess(l,mid))
        calc(mask,l,mid);
    if (guess(mid+1,r))
        calc(mask,mid+1,r);
}
signed main() {
    double p;
    
    cin >> n >> p >> t;
    double tte = 1/p;
    int mile = (int)tte;
    
    while(t--)
    {
        
        int prev = 0;
        vector<bool> mask(n,0);
        if (mile < 100)
        {
            calc(mask,0,n-1);
        }
        else
        while(prev < n)
        {
            int l = prev, r = min(n-1,prev+max(4ll,mile));
            if (!guess(l,r))
            {
                prev = r+1;
                continue;
            }
            while (r-l>1)
            {
                int mid = l+r>>1;
                if (guess(prev,mid))
                    r = mid;
                else
                    l = mid;
            }
            if (guess(l,l))
            {
                mask[l] = 1;
                prev = r;
            }
            else
            {
                mask[r] = 1;
                prev = r+1;
            }
        }
        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;
    }
}

Compilation message

Main.cpp: In function 'void calc(std::vector<bool>&, long long int, long long int)':
Main.cpp:33:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   33 |     int mid = l+r>>1;
      |               ~^~
Main.cpp: In function 'int main()':
Main.cpp:66:28: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   66 |                 int mid = l+r>>1;
      |                           ~^~

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 58 ms 344 KB Output is correct
2 Correct 42 ms 344 KB Output is correct
3 Correct 62 ms 344 KB Output is correct
4 Correct 44 ms 344 KB Output is correct
5 Correct 53 ms 344 KB Output is correct
6 Correct 44 ms 344 KB Output is correct
7 Correct 41 ms 344 KB Output is correct
8 Correct 48 ms 344 KB Output is correct
9 Correct 60 ms 344 KB Output is correct
10 Correct 40 ms 344 KB Output is correct
11 Correct 39 ms 344 KB Output is correct
12 Correct 38 ms 344 KB Output is correct
13 Correct 44 ms 344 KB Output is correct
14 Correct 50 ms 344 KB Output is correct
15 Correct 40 ms 344 KB Output is correct
16 Correct 48 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct

Subtask #2
0.0 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 106 ms 344 KB Output is correct (P=0.001, F=15.1, Q=11.6) -> 90.00 points
2 Correct 411 ms 340 KB Output is correct (P=0.005256, F=51.1, Q=52.3) -> 82.27 points
3 Correct 1177 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=149.0) -> 27.44 points
4 Correct 2323 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=302.5) -> 27.12 points
5 Correct 3166 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=387.5) -> 27.33 points
6 Correct 4394 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=568.4) -> 28.05 points
7 Correct 6132 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=750.4) -> 28.83 points
8 Execution timed out 7051 ms 344 KB Time limit exceeded
9 Halted 0 ms 0 KB -