oj.uz

Submission #1071475

# Submission time Handle Problem Language Result Execution time Memory
1071475 2024-08-23T07:39:23 Z jer033 COVID tests (CEOI24_covid) C++17
54.46 / 100
 5605 ms 596 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)
{
    cout << "Q ";
    for (int i=0; i<x; i++)
        cout << '0';
    for (int i=x; i<=y; i++)
        cout << '1';
    for (int i=y+1; i<1000; i++)
        cout << '0';
    cout << endl;
    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 known)
{
    bool response;
    if (known==1)
        response = 1;
    else
        response = ask_query2(x, y);
    if (response==1)
    {
        if (x==y)
            answer[x] = 1;
        else
        {
            int z = (x+y)/2;
            bool a = range_query(x, z, 0);
            if (a==0)
                range_query(z+1, y, 1);
            else
                range_query(z+1, y, 0);
        }
        return 1;
    }
    return 0;
}

int main()
{
    std::ios::sync_with_stdio(false);
    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, 0);
            else if (P < 0.05)
            {
                for (int i=1; i<=40; i++)
                    range_query(25*i-25, 25*i-1, 0);
            }
            else if (P < 0.11)
            {
                for (int i=1; i<=100; i++)
                    range_query(10*i-10, 10*i-1, 0);
            }
            else
            {
                for (int i=1; i<=200; i++)
                    range_query(5*i-5, 5*i-1, 0);
            }
            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 36 ms 344 KB Output is correct
2 Correct 50 ms 344 KB Output is correct
3 Correct 33 ms 344 KB Output is correct
4 Correct 33 ms 344 KB Output is correct
5 Correct 37 ms 344 KB Output is correct
6 Correct 38 ms 344 KB Output is correct
7 Correct 32 ms 344 KB Output is correct
8 Correct 44 ms 344 KB Output is correct
9 Correct 33 ms 344 KB Output is correct
10 Correct 44 ms 344 KB Output is correct
11 Correct 33 ms 344 KB Output is correct
12 Correct 33 ms 344 KB Output is correct
13 Correct 33 ms 344 KB Output is correct
14 Correct 44 ms 344 KB Output is correct
15 Correct 34 ms 344 KB Output is correct
16 Correct 33 ms 344 KB Output is correct
17 Correct 35 ms 344 KB Output is correct

Subtask #2
44.46 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 118 ms 344 KB Output is correct (P=0.001, F=15.1, Q=13.9) -> 90.00 points
2 Correct 407 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=61.5) -> 49.61 points
3 Correct 795 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=119.2) -> 44.46 points
4 Correct 1559 ms 596 KB Output is correct (P=0.028545, F=191.5, Q=228.2) -> 50.95 points
5 Correct 1965 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=295.1) -> 50.21 points
6 Correct 2810 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=426.1) -> 54.40 points
7 Correct 3817 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=569.2) -> 54.75 points
8 Correct 4729 ms 344 KB Output is correct (P=0.158765, F=639.1, Q=712.5) -> 61.67 points
9 Correct 5605 ms 344 KB Output is correct (P=0.2, F=731.4, Q=828.6) -> 58.76 points