oj.uz

Submission #1071495

# Submission time Handle Problem Language Result Execution time Memory
1071495 2024-08-23T07:51:54 Z jer033 COVID tests (CEOI24_covid) C++17
49.38 / 100
 5447 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)
{
    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(250);
            else if (P < 0.02)
                work(20);
            else if (P < 0.03)
                work(18);
            else if (P < 0.05)
                work(12);
            else if (P < 0.10)
                work(8);
            else if (P < 0.15)
                work(5);
            else if (P < 0.19)
                work(4);
            else
                work(3);
            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 33 ms 344 KB Output is correct
3 Correct 34 ms 344 KB Output is correct
4 Correct 37 ms 344 KB Output is correct
5 Correct 35 ms 344 KB Output is correct
6 Correct 34 ms 344 KB Output is correct
7 Correct 34 ms 344 KB Output is correct
8 Correct 33 ms 344 KB Output is correct
9 Correct 33 ms 344 KB Output is correct
10 Correct 33 ms 344 KB Output is correct
11 Correct 33 ms 344 KB Output is correct
12 Correct 60 ms 344 KB Output is correct
13 Correct 56 ms 344 KB Output is correct
14 Correct 35 ms 344 KB Output is correct
15 Correct 33 ms 344 KB Output is correct
16 Correct 46 ms 344 KB Output is correct
17 Correct 32 ms 344 KB Output is correct

Subtask #2
39.380000004 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 94 ms 344 KB Output is correct (P=0.001, F=15.1, Q=13.9) -> 90.00 points
2 Correct 402 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=59.3) -> 54.82 points
3 Correct 818 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=125.4) -> 39.38 points
4 Correct 1497 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=227.7) -> 51.25 points
5 Correct 1895 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=293.0) -> 51.18 points
6 Correct 2659 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=407.2) -> 62.16 points
7 Correct 3676 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=559.9) -> 57.40 points
8 Correct 4522 ms 344 KB Output is correct (P=0.158765, F=639.1, Q=671.0) -> 75.02 points
9 Correct 5447 ms 344 KB Output is correct (P=0.2, F=731.4, Q=804.1) -> 64.40 points