oj.uz

Submission #1071413

# Submission time Handle Problem Language Result Execution time Memory
1071413 2024-08-23T07:14:17 Z jer033 COVID tests (CEOI24_covid) C++17
10 / 100
 52 ms 344 KB 
#include <bits/stdc++.h>
using namespace std;

vector<bool> answer(1000, 0);

void answer_clear()
{
    for (int i=0; i<1000; i++)
        answer[i] = 0;
}

bool ask_query(vector<bool> a)
{
    cout << "Q ";
    for (int i=0; i<1000; i++)
        cout << a[i];
    cout << '\n';
    cout.flush();
    char x;
    cin >> x;
    if (x=='P')
        return 1;
    return 0;
}

bool ask_query2(int x, int y)
{
    char s_form[1003];
    s_form[0] = 'Q';
    s_form[1] = ' ';
    for (int i=0; i<x; i++)
        s_form[i] = '0';
    for (int i=x; i<=y; i++)
        s_form[i] = '1';
    for (int i=y+1; i<1000; i++)
        s_form[i] = '0';
    s_form[1002] = '\n';
    printf("%s", s_form);
    cout.flush();
    char k;
    cin >> k;
    if (k=='P')
        return 1;
    return 0;
}

bool report(vector<bool> a)
{
    cout << "A ";
    for (int i=0; i<1000; i++)
        cout << a[i];
    cout << '\n';
    cout.flush();
    char x;
    cin >> x;
    if (x=='C')
        return 1;
    return 0;
}

bool range_query(int x, int y)
{
    bool response = ask_query2(x, y);
    if (response==1)
    {
        if (x==y)
            answer[x] = 1;
        else
        {
            int z = (x+y)/2;
            range_query(x, z);
            range_query(z+1, y);
        }
        return 1;
    }
    return 0;
}

int main()
{
    int N, T;
    long double P;
    cin >> N >> P >> T;
    if (T==1)
    {
        while (T--)
        {
            vector<bool> query(N, 0);
            vector<bool> ans(N, 0);
            for (int i=0; i<N; i++)
            {
                query[i] = 1;
                ans[i] = ask_query(query);
                query[i] = 0;
            }
            bool L = report(ans);
            if (L==0)
                T = 0;
        }
    }
    else
    {
        while (T--)
        {
            answer_clear();
            if (P < 0.01)
                range_query(0, 999);
            else if (P < 0.05)
            {
                for (int i=1; i<=10; i++)
                    range_query(100*i-100, 100*i-1);
            }
            else if (P < 0.11)
            {
                for (int i=1; i<=50; i++)
                    range_query(20*i-20, 20*i-1);
            }
            else
            {
                for (int i=1; i<=100; i++)
                    range_query(10*i-10, 10*i-1);
            }
            bool L = report(answer);
            if (L==0)
                T = 0;
        }
    }
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Runtime error 0 ms 344 KB Execution killed with signal 13
2 Halted 0 ms 0 KB -

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 49 ms 344 KB Output is correct
2 Correct 37 ms 340 KB Output is correct
3 Correct 37 ms 344 KB Output is correct
4 Correct 37 ms 344 KB Output is correct
5 Correct 52 ms 344 KB Output is correct
6 Correct 39 ms 344 KB Output is correct
7 Correct 37 ms 344 KB Output is correct
8 Correct 37 ms 344 KB Output is correct
9 Correct 39 ms 344 KB Output is correct
10 Correct 45 ms 344 KB Output is correct
11 Correct 48 ms 344 KB Output is correct
12 Correct 39 ms 344 KB Output is correct
13 Correct 46 ms 344 KB Output is correct
14 Correct 42 ms 340 KB Output is correct
15 Correct 42 ms 344 KB Output is correct
16 Correct 36 ms 344 KB Output is correct
17 Correct 38 ms 344 KB Output is correct

Subtask #2
0.0 / 90.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 344 KB Execution killed with signal 13
2 Halted 0 ms 0 KB -