oj.uz

Submission #1071374

# Submission time Handle Problem Language Result Execution time Memory
1071374 2024-08-23T06:59:30 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++)
        cout << 0;
    for (int i=x; i<=y; i++)
        cout << 1;
    for (int i=y+1; i<1000; i++)
        cout << 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) or (P > 0.10))
    {
        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 37 ms 344 KB Output is correct
2 Correct 36 ms 344 KB Output is correct
3 Correct 46 ms 344 KB Output is correct
4 Correct 42 ms 344 KB Output is correct
5 Correct 37 ms 344 KB Output is correct
6 Correct 40 ms 344 KB Output is correct
7 Correct 38 ms 344 KB Output is correct
8 Correct 50 ms 344 KB Output is correct
9 Correct 57 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 42 ms 344 KB Output is correct
15 Correct 44 ms 344 KB Output is correct
16 Correct 41 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 228 ms 344 KB Output is correct (P=0.001, F=15.1, Q=17.8) -> 52.47 points
2 Correct 897 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=78.0) -> 28.98 points
3 Correct 1644 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=143.0) -> 29.73 points
4 Correct 3444 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=298.3) -> 27.86 points
5 Correct 4612 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=384.8) -> 27.70 points
6 Correct 6026 ms 340 KB Output is correct (P=0.068648, F=366.2, Q=531.6) -> 32.07 points
7 Execution timed out 7050 ms 344 KB Time limit exceeded
8 Halted 0 ms 0 KB -