oj.uz

Submission #1071451

# Submission time Handle Problem Language Result Execution time Memory
1071451 2024-08-23T07:30:03 Z jer033 COVID tests (CEOI24_covid) C++17
37.7 / 100
 6862 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 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()
{
    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);
            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 1 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 34 ms 344 KB Output is correct
2 Correct 33 ms 356 KB Output is correct
3 Correct 49 ms 344 KB Output is correct
4 Correct 33 ms 596 KB Output is correct
5 Correct 32 ms 344 KB Output is correct
6 Correct 32 ms 344 KB Output is correct
7 Correct 43 ms 340 KB Output is correct
8 Correct 32 ms 344 KB Output is correct
9 Correct 34 ms 344 KB Output is correct
10 Correct 50 ms 344 KB Output is correct
11 Correct 42 ms 344 KB Output is correct
12 Correct 33 ms 344 KB Output is correct
13 Correct 59 ms 344 KB Output is correct
14 Correct 42 ms 344 KB Output is correct
15 Correct 33 ms 344 KB Output is correct
16 Correct 58 ms 344 KB Output is correct
17 Correct 38 ms 344 KB Output is correct

Subtask #2
27.700000002 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 130 ms 340 KB Output is correct (P=0.001, F=15.1, Q=17.8) -> 52.47 points
2 Correct 653 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=78.0) -> 28.98 points
3 Correct 972 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=143.0) -> 29.73 points
4 Correct 2061 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=298.3) -> 27.86 points
5 Correct 2653 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=384.8) -> 27.70 points
6 Correct 3722 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=531.6) -> 32.07 points
7 Correct 4730 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=714.6) -> 31.80 points
8 Correct 6091 ms 344 KB Output is correct (P=0.158765, F=639.1, Q=887.5) -> 35.23 points
9 Correct 6862 ms 344 KB Output is correct (P=0.2, F=731.4, Q=1033.2) -> 33.96 points