oj.uz

Submission #1071469

# Submission time Handle Problem Language Result Execution time Memory
1071469 2024-08-23T07:36:14 Z jer033 COVID tests (CEOI24_covid) C++17
52.9 / 100
 6011 ms 460 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<=10; i++)
                    range_query(100*i-100, 100*i-1, 0);
            }
            else if (P < 0.11)
            {
                for (int i=1; i<=50; i++)
                    range_query(20*i-20, 20*i-1, 0);
            }
            else
            {
                for (int i=1; i<=100; i++)
                    range_query(10*i-10, 10*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 460 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 35 ms 344 KB Output is correct
2 Correct 44 ms 344 KB Output is correct
3 Correct 36 ms 344 KB Output is correct
4 Correct 54 ms 344 KB Output is correct
5 Correct 40 ms 344 KB Output is correct
6 Correct 38 ms 344 KB Output is correct
7 Correct 37 ms 344 KB Output is correct
8 Correct 56 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 33 ms 344 KB Output is correct
13 Correct 54 ms 344 KB Output is correct
14 Correct 35 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 42 ms 344 KB Output is correct

Subtask #2
42.900000003 / 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 478 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=61.5) -> 49.61 points
3 Correct 814 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=114.1) -> 49.74 points
4 Correct 1731 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=241.1) -> 44.20 points
5 Correct 2279 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=313.9) -> 42.90 points
6 Correct 3217 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=439.5) -> 49.98 points
7 Correct 4137 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=597.0) -> 48.12 points
8 Correct 5135 ms 344 KB Output is correct (P=0.158765, F=639.1, Q=752.3) -> 52.68 points
9 Correct 6011 ms 344 KB Output is correct (P=0.2, F=731.4, Q=885.4) -> 48.85 points