oj.uz

Submission #1044385

# Submission time Handle Problem Language Result Execution time Memory
1044385 2024-08-05T09:09:20 Z CyberCow COVID tests (CEOI24_covid) C++17
52.34 / 100
 5370 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;
        recus(0, 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:120:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<bool>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  120 |         for (int i = 0; i < answer.size(); i++)
      |                         ~~^~~~~~~~~~~~~~~

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 51 ms 340 KB Output is correct
2 Correct 30 ms 344 KB Output is correct
3 Correct 31 ms 344 KB Output is correct
4 Correct 41 ms 344 KB Output is correct
5 Correct 34 ms 340 KB Output is correct
6 Correct 41 ms 596 KB Output is correct
7 Correct 32 ms 344 KB Output is correct
8 Correct 24 ms 344 KB Output is correct
9 Correct 35 ms 344 KB Output is correct
10 Correct 17 ms 344 KB Output is correct
11 Correct 22 ms 344 KB Output is correct
12 Correct 34 ms 344 KB Output is correct
13 Correct 34 ms 344 KB Output is correct
14 Correct 22 ms 340 KB Output is correct
15 Correct 32 ms 344 KB Output is correct
16 Correct 45 ms 344 KB Output is correct
17 Correct 0 ms 340 KB Output is correct

Subtask #2
42.339999996 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 99 ms 344 KB Output is correct (P=0.001, F=15.1, Q=14.0) -> 90.00 points
2 Correct 402 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=61.0) -> 50.71 points
3 Correct 771 ms 340 KB Output is correct (P=0.011546, F=94.9, Q=118.5) -> 45.12 points
4 Correct 1587 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=241.9) -> 43.84 points
5 Correct 2033 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=312.5) -> 43.37 points
6 Correct 3052 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=462.4) -> 43.89 points
7 Correct 3840 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=618.5) -> 43.99 points
8 Correct 4453 ms 344 KB Output is correct (P=0.158765, F=639.1, Q=807.1) -> 43.87 points
9 Correct 5370 ms 344 KB Output is correct (P=0.2, F=731.4, Q=937.2) -> 42.34 points