oj.uz

Submission #1071487

# Submission time Handle Problem Language Result Execution time Memory
1071487 2024-08-23T07:46:04 Z jer033 COVID tests (CEOI24_covid) C++17
59.17 / 100
 5328 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;
}

void work(int m)
{
    int curr = 0;
    bool go_on = 1;
    while (go_on)
    {
        range_query(curr, min(curr+m-1, 999), 0);
        if ((curr+m-1)>=999)
            go_on = 0;
        curr+=m;
    }
}

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 < 0.005)
                work(1000);
            else if (P < 0.01)
                work(334);
            else if (P < 0.02)
                work(40);
            else if (P < 0.03)
                work(35);
            else if (P < 0.05)
                work(25);
            else if (P < 0.10)
                work(15);
            else if (P < 0.15)
                work(10);
            else
                work(5);
            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 38 ms 344 KB Output is correct
2 Correct 32 ms 344 KB Output is correct
3 Correct 44 ms 596 KB Output is correct
4 Correct 36 ms 344 KB Output is correct
5 Correct 36 ms 344 KB Output is correct
6 Correct 41 ms 344 KB Output is correct
7 Correct 33 ms 344 KB Output is correct
8 Correct 33 ms 344 KB Output is correct
9 Correct 34 ms 344 KB Output is correct
10 Correct 54 ms 344 KB Output is correct
11 Correct 55 ms 344 KB Output is correct
12 Correct 33 ms 344 KB Output is correct
13 Correct 53 ms 344 KB Output is correct
14 Correct 34 ms 344 KB Output is correct
15 Correct 32 ms 344 KB Output is correct
16 Correct 55 ms 344 KB Output is correct
17 Correct 32 ms 344 KB Output is correct

Subtask #2
49.169999997 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 105 ms 344 KB Output is correct (P=0.001, F=15.1, Q=13.9) -> 90.00 points
2 Correct 378 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=60.6) -> 51.62 points
3 Correct 725 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=114.6) -> 49.17 points
4 Correct 1489 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=227.9) -> 51.13 points
5 Correct 2139 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=295.1) -> 50.21 points
6 Correct 2938 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=419.8) -> 56.77 points
7 Correct 3861 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=569.2) -> 54.75 points
8 Correct 4734 ms 344 KB Output is correct (P=0.158765, F=639.1, Q=712.5) -> 61.67 points
9 Correct 5328 ms 344 KB Output is correct (P=0.2, F=731.4, Q=828.6) -> 58.76 points