oj.uz

Submission #1044394

# Submission time Handle Problem Language Result Execution time Memory
1044394 2024-08-05T09:16:55 Z CyberCow COVID tests (CEOI24_covid) C++17
49.36 / 100
 5590 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 / 5;
        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 33 ms 344 KB Output is correct
2 Correct 40 ms 344 KB Output is correct
3 Correct 35 ms 344 KB Output is correct
4 Correct 42 ms 344 KB Output is correct
5 Correct 32 ms 344 KB Output is correct
6 Correct 32 ms 344 KB Output is correct
7 Correct 37 ms 344 KB Output is correct
8 Correct 26 ms 344 KB Output is correct
9 Correct 35 ms 596 KB Output is correct
10 Correct 14 ms 344 KB Output is correct
11 Correct 24 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 24 ms 344 KB Output is correct
15 Correct 25 ms 344 KB Output is correct
16 Correct 32 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct

Subtask #2
39.359999997 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 114 ms 344 KB Output is correct (P=0.001, F=15.1, Q=19.4) -> 42.07 points
2 Correct 364 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=60.2) -> 52.56 points
3 Correct 711 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=115.3) -> 48.39 points
4 Correct 1388 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=243.4) -> 43.18 points
5 Correct 1850 ms 340 KB Output is correct (P=0.039856, F=246.3, Q=316.2) -> 42.15 points
6 Correct 2761 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=471.4) -> 41.88 points
7 Correct 3688 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=633.5) -> 41.51 points
8 Correct 4814 ms 344 KB Output is correct (P=0.158765, F=639.1, Q=831.8) -> 40.80 points
9 Correct 5590 ms 344 KB Output is correct (P=0.2, F=731.4, Q=966.7) -> 39.36 points