oj.uz

Submission #1069395

# Submission time Handle Problem Language Result Execution time Memory
1069395 2024-08-21T21:25:58 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);
}
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 mile = (int)tte;
    
    while(t--)
    {
        
        int prev = 0;
        vector<bool> mask(n,0);
        if (mile < 14)
        {
            linear(mask,mile);
        }
       else if (mile < 25) 
        {
            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:84:28: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   84 |                 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 28 ms 344 KB Output is correct
2 Correct 28 ms 344 KB Output is correct
3 Correct 28 ms 344 KB Output is correct
4 Correct 45 ms 344 KB Output is correct
5 Correct 29 ms 344 KB Output is correct
6 Correct 29 ms 344 KB Output is correct
7 Correct 25 ms 344 KB Output is correct
8 Correct 22 ms 344 KB Output is correct
9 Correct 25 ms 344 KB Output is correct
10 Correct 16 ms 344 KB Output is correct
11 Correct 28 ms 344 KB Output is correct
12 Correct 25 ms 340 KB Output is correct
13 Correct 24 ms 344 KB Output is correct
14 Correct 24 ms 344 KB Output is correct
15 Correct 22 ms 344 KB Output is correct
16 Correct 48 ms 344 KB Output is correct
17 Correct 25 ms 344 KB Output is correct

Subtask #2
0.0 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 344 KB Output is correct (P=0.001, F=15.1, Q=11.6) -> 90.00 points
2 Correct 355 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=52.3) -> 82.27 points
3 Correct 694 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=103.5) -> 66.06 points
4 Correct 1526 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=218.3) -> 57.70 points
5 Execution timed out 7052 ms 344 KB Time limit exceeded
6 Halted 0 ms 0 KB -