oj.uz

Submission #1071384

# Submission time Handle Problem Language Result Execution time Memory
1071384 2024-08-23T07:04:34 Z jer033 COVID tests (CEOI24_covid) C++17
10 / 100
 7000 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++)
        printf("%i", 0);
    for (int i=x; i<=y; i++)
        printf("%i", 1);
    for (int i=y+1; i<1000; i++)
        printf("%i", 0);
    cout << '\n';
    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 50 ms 344 KB Output is correct
2 Correct 38 ms 344 KB Output is correct
3 Correct 39 ms 344 KB Output is correct
4 Correct 37 ms 344 KB Output is correct
5 Correct 48 ms 340 KB Output is correct
6 Correct 42 ms 344 KB Output is correct
7 Correct 49 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 37 ms 344 KB Output is correct
11 Correct 37 ms 344 KB Output is correct
12 Correct 37 ms 344 KB Output is correct
13 Correct 42 ms 344 KB Output is correct
14 Correct 37 ms 344 KB Output is correct
15 Correct 48 ms 344 KB Output is correct
16 Correct 38 ms 344 KB Output is correct
17 Correct 37 ms 344 KB Output is correct

Subtask #2
0.0 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 262 ms 344 KB Output is correct (P=0.001, F=15.1, Q=17.8) -> 52.47 points
2 Correct 1224 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=78.0) -> 28.98 points
3 Correct 2387 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=143.0) -> 29.73 points
4 Correct 4538 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=298.3) -> 27.86 points
5 Correct 5710 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=384.8) -> 27.70 points
6 Execution timed out 7030 ms 344 KB Time limit exceeded
7 Halted 0 ms 0 KB -