oj.uz

Submission #1069390

# Submission time Handle Problem Language Result Execution time Memory
1069390 2024-08-21T21:12:11 Z BigBadBully COVID tests (CEOI24_covid) C++17
37.33 / 100
 6063 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 < 13)
        {
            linear(mask,mile);
        }
       else if (mile < 34) 
        {
            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 39 ms 344 KB Output is correct
2 Correct 30 ms 344 KB Output is correct
3 Correct 51 ms 344 KB Output is correct
4 Correct 27 ms 344 KB Output is correct
5 Correct 29 ms 344 KB Output is correct
6 Correct 28 ms 344 KB Output is correct
7 Correct 31 ms 344 KB Output is correct
8 Correct 25 ms 344 KB Output is correct
9 Correct 26 ms 344 KB Output is correct
10 Correct 16 ms 344 KB Output is correct
11 Correct 23 ms 344 KB Output is correct
12 Correct 24 ms 344 KB Output is correct
13 Correct 25 ms 344 KB Output is correct
14 Correct 21 ms 340 KB Output is correct
15 Correct 28 ms 344 KB Output is correct
16 Correct 46 ms 344 KB Output is correct
17 Correct 25 ms 344 KB Output is correct

Subtask #2
27.330000003 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 81 ms 344 KB Output is correct (P=0.001, F=15.1, Q=11.6) -> 90.00 points
2 Correct 364 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=52.3) -> 82.27 points
3 Correct 735 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=103.5) -> 66.06 points
4 Correct 1476 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=218.3) -> 57.70 points
5 Correct 2730 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=387.5) -> 27.33 points
6 Correct 3880 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=568.4) -> 28.05 points
7 Correct 5249 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=767.3) -> 27.61 points
8 Correct 5632 ms 344 KB Output is correct (P=0.158765, F=639.1, Q=842.6) -> 39.58 points
9 Correct 6063 ms 344 KB Output is correct (P=0.2, F=731.4, Q=903.5) -> 46.36 points