oj.uz

Submission #1071499

# Submission time Handle Problem Language Result Execution time Memory
1071499 2024-08-23T07:52:57 Z jer033 COVID tests (CEOI24_covid) C++17
49.38 / 100
 5339 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(300);
            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 35 ms 344 KB Output is correct
2 Correct 33 ms 344 KB Output is correct
3 Correct 47 ms 340 KB Output is correct
4 Correct 45 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 33 ms 344 KB Output is correct
8 Correct 40 ms 344 KB Output is correct
9 Correct 33 ms 340 KB Output is correct
10 Correct 42 ms 344 KB Output is correct
11 Correct 53 ms 344 KB Output is correct
12 Correct 33 ms 344 KB Output is correct
13 Correct 38 ms 344 KB Output is correct
14 Correct 42 ms 344 KB Output is correct
15 Correct 40 ms 344 KB Output is correct
16 Correct 39 ms 344 KB Output is correct
17 Correct 34 ms 344 KB Output is correct

Subtask #2
39.380000004 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 104 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=60.6) -> 51.62 points
3 Correct 852 ms 340 KB Output is correct (P=0.011546, F=94.9, Q=125.4) -> 39.38 points
4 Correct 1531 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=227.7) -> 51.25 points
5 Correct 1959 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=293.0) -> 51.18 points
6 Correct 2803 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=407.2) -> 62.16 points
7 Correct 3674 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=559.9) -> 57.40 points
8 Correct 4550 ms 344 KB Output is correct (P=0.158765, F=639.1, Q=671.0) -> 75.02 points
9 Correct 5339 ms 344 KB Output is correct (P=0.2, F=731.4, Q=804.1) -> 64.40 points