oj.uz

Submission #1069383

# Submission time Handle Problem Language Result Execution time Memory
1069383 2024-08-21T20:52:20 Z BigBadBully COVID tests (CEOI24_covid) C++17
0 / 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,prev+mile)))
            for (int i = prev;i < min(n,prev+mile); i++)
                if (guess(i,i))
                    mask[i] = 1;
        prev = min(n,prev+mile);
    }
    
    
}
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 < 10)
        {
            linear(mask,mile);
        }
        else 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: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 0 ms 344 KB Output is correct

Subtask #1
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 344 KB Output is correct
2 Correct 45 ms 344 KB Output is correct
3 Correct 60 ms 344 KB Output is correct
4 Correct 53 ms 344 KB Output is correct
5 Correct 52 ms 344 KB Output is correct
6 Correct 64 ms 344 KB Output is correct
7 Correct 61 ms 344 KB Output is correct
8 Correct 30 ms 344 KB Output is correct
9 Correct 43 ms 344 KB Output is correct
10 Correct 21 ms 344 KB Output is correct
11 Correct 33 ms 344 KB Output is correct
12 Correct 33 ms 340 KB Output is correct
13 Correct 40 ms 344 KB Output is correct
14 Correct 33 ms 344 KB Output is correct
15 Correct 34 ms 344 KB Output is correct
16 Correct 48 ms 344 KB Output is correct
17 Execution timed out 7007 ms 344 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #2
0.0 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 94 ms 344 KB Output is correct (P=0.001, F=15.1, Q=11.6) -> 90.00 points
2 Correct 417 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=52.3) -> 82.27 points
3 Correct 1136 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=149.0) -> 27.44 points
4 Correct 2475 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=302.5) -> 27.12 points
5 Correct 3177 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=387.5) -> 27.33 points
6 Correct 4627 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=568.4) -> 28.05 points
7 Correct 6314 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=779.0) -> 26.82 points
8 Execution timed out 7052 ms 344 KB Time limit exceeded
9 Halted 0 ms 0 KB -