oj.uz

Submission #1044391

# Submission time Handle Problem Language Result Execution time Memory
1044391 2024-08-05T09:15:23 Z CyberCow COVID tests (CEOI24_covid) C++17
52.52 / 100
 5248 ms 596 KB 
#include <cassert>
#include <cstdio>
#include <string>
#include <vector>
#include <iostream>
using namespace std;

int N;
double P;

inline bool test_students(int &l, int &r) {
    cout << "Q ";
    for (int i = 0; i < l; i++)
    {
        cout << '0';
    }
    for (int i = l; i <= r; i++)
    {
        cout << '1';
    }
    for (int i = r + 1; i < N; i++)
    {
        cout << '0';
    }
    cout << endl;
    char c;
    cin >> c;
    if (c == 'P')
        return 1;
    return 0;
}

vector<bool> answer;

inline void recus(int l, int r, int st)
{
    if (l == r)
    {
        if(test_students(l, r))
        {
            answer[l] = 1;
        }
    }
    else
    {
        int m = (l + r) / 2;
        int hm = test_students(l, m);
        if (hm == 0)
        {
            if (st == 0)
            {
                m++;
                hm = test_students(m, r);
                m--;
                if (hm == 1)
                {
                    if (m + 1 == r)
                    {
                        answer[r] = 1;
                    }
                    else
                    {
                        recus(m + 1, r, 1);
                    }
                }
            }
            else
            {
                if (m + 1 == r)
                {
                    answer[r] = 1;
                }
                else
                {
                    recus(m + 1, r, 1);
                }
            }
        }
        else
        {
            if (l != m)
                recus(l, m, 1);
            else
            {
                answer[l] = 1;
            }
            m++;
            hm = test_students(m, r);
            m--;
            if (hm == 1)
            {
                if (m + 1 != r)
                {
                    recus(m + 1, r, st);
                }
                else
                {
                    answer[m + 1] = 1;
                }
            }
        }
    }
}


int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int T;
    cin >> N >> P >> T;
    vector<bool>zro;
    for (int i = 0; i < N; i++)
    {
        zro.push_back(0);
    }
    for (int i = 0; i < T; i++) {
        answer = zro;
        int intervalboooom = N / 2;
        for (int j = 0; j < N; j+=intervalboooom)
        {
            recus(j, min(j + intervalboooom - 1, N - 1), 0);
        }
        cout << "A ";
        for (int i = 0; i < answer.size(); i++)
        {
            cout << answer[i];
        }
        cout << endl;
        char c;
        cin >> c;
    }
    return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:124:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<bool>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  124 |         for (int i = 0; i < answer.size(); i++)
      |                         ~~^~~~~~~~~~~~~~~

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 34 ms 344 KB Output is correct
2 Correct 29 ms 344 KB Output is correct
3 Correct 31 ms 344 KB Output is correct
4 Correct 37 ms 344 KB Output is correct
5 Correct 51 ms 344 KB Output is correct
6 Correct 30 ms 344 KB Output is correct
7 Correct 25 ms 344 KB Output is correct
8 Correct 38 ms 344 KB Output is correct
9 Correct 30 ms 344 KB Output is correct
10 Correct 15 ms 356 KB Output is correct
11 Correct 33 ms 344 KB Output is correct
12 Correct 24 ms 344 KB Output is correct
13 Correct 35 ms 344 KB Output is correct
14 Correct 21 ms 596 KB Output is correct
15 Correct 23 ms 344 KB Output is correct
16 Correct 32 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct

Subtask #2
42.519999996 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 89 ms 344 KB Output is correct (P=0.001, F=15.1, Q=14.8) -> 90.00 points
2 Correct 367 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=59.8) -> 53.54 points
3 Correct 667 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=117.0) -> 46.60 points
4 Correct 1356 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=240.4) -> 44.52 points
5 Correct 1683 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=311.1) -> 43.85 points
6 Correct 2637 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=460.8) -> 44.26 points
7 Correct 3441 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=616.9) -> 44.27 points
8 Correct 4545 ms 344 KB Output is correct (P=0.158765, F=639.1, Q=805.4) -> 44.10 points
9 Correct 5248 ms 344 KB Output is correct (P=0.2, F=731.4, Q=935.6) -> 42.52 points