oj.uz

Submission #1069388

# Submission time Handle Problem Language Result Execution time Memory
1069388 2024-08-21T21:05:39 Z BigBadBully COVID tests (CEOI24_covid) C++17
37.12 / 100
 6049 ms 348 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 < 13)
        {
            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
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 344 KB Output is correct
2 Correct 27 ms 344 KB Output is correct
3 Correct 32 ms 344 KB Output is correct
4 Correct 29 ms 344 KB Output is correct
5 Correct 36 ms 344 KB Output is correct
6 Correct 34 ms 340 KB Output is correct
7 Correct 31 ms 344 KB Output is correct
8 Correct 22 ms 344 KB Output is correct
9 Correct 25 ms 340 KB Output is correct
10 Correct 22 ms 344 KB Output is correct
11 Correct 23 ms 344 KB Output is correct
12 Correct 30 ms 344 KB Output is correct
13 Correct 30 ms 344 KB Output is correct
14 Correct 28 ms 344 KB Output is correct
15 Correct 22 ms 344 KB Output is correct
16 Correct 32 ms 344 KB Output is correct
17 Correct 19 ms 344 KB Output is correct

Subtask #2
27.119999997 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 78 ms 344 KB Output is correct (P=0.001, F=15.1, Q=11.6) -> 90.00 points
2 Correct 375 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=52.3) -> 82.27 points
3 Correct 1042 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=149.0) -> 27.44 points
4 Correct 2061 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=302.5) -> 27.12 points
5 Correct 2731 ms 348 KB Output is correct (P=0.039856, F=246.3, Q=387.5) -> 27.33 points
6 Correct 3859 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=568.4) -> 28.05 points
7 Correct 5297 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=767.3) -> 27.61 points
8 Correct 5776 ms 340 KB Output is correct (P=0.158765, F=639.1, Q=842.6) -> 39.58 points
9 Correct 6049 ms 344 KB Output is correct (P=0.2, F=731.4, Q=903.5) -> 46.36 points