oj.uz

Submission #1068585

# Submission time Handle Problem Language Result Execution time Memory
1068585 2024-08-21T10:47:05 Z vjudge1 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 0 ms 344 KB Output is correct

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 344 KB Output is correct
2 Correct 45 ms 340 KB Output is correct
3 Correct 53 ms 344 KB Output is correct
4 Correct 61 ms 344 KB Output is correct
5 Correct 45 ms 344 KB Output is correct
6 Correct 49 ms 344 KB Output is correct
7 Correct 42 ms 344 KB Output is correct
8 Correct 38 ms 344 KB Output is correct
9 Correct 50 ms 344 KB Output is correct
10 Correct 25 ms 344 KB Output is correct
11 Correct 51 ms 344 KB Output is correct
12 Correct 43 ms 340 KB Output is correct
13 Correct 45 ms 344 KB Output is correct
14 Correct 43 ms 344 KB Output is correct
15 Correct 42 ms 344 KB Output is correct
16 Correct 59 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 125 ms 344 KB Output is correct (P=0.001, F=15.1, Q=11.6) -> 90.00 points
2 Correct 476 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=52.3) -> 82.27 points
3 Correct 1190 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=149.0) -> 27.44 points
4 Correct 2442 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=302.5) -> 27.12 points
5 Correct 2976 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=387.5) -> 27.33 points
6 Correct 4365 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=568.4) -> 28.05 points
7 Correct 5872 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=750.4) -> 28.83 points
8 Execution timed out 7015 ms 344 KB Time limit exceeded
9 Halted 0 ms 0 KB -