oj.uz

Submission #1071684

# Submission time Handle Problem Language Result Execution time Memory
1071684 2024-08-23T09:59:26 Z jer033 COVID tests (CEOI24_covid) C++17
59.4 / 100
 5232 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;
}

long double prob;

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 = (49*x+50*y)/99;
            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
    {
        prob = P;
        while (T--)
        {
            answer_clear();
            if (P < 0.005)
                work(1000);
            else if (P < 0.01)
                work(334);
            else if (P < 0.02)
                work(45);
            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 61 ms 344 KB Output is correct
2 Correct 32 ms 344 KB Output is correct
3 Correct 45 ms 344 KB Output is correct
4 Correct 35 ms 344 KB Output is correct
5 Correct 40 ms 344 KB Output is correct
6 Correct 39 ms 344 KB Output is correct
7 Correct 45 ms 344 KB Output is correct
8 Correct 46 ms 344 KB Output is correct
9 Correct 42 ms 344 KB Output is correct
10 Correct 39 ms 344 KB Output is correct
11 Correct 38 ms 344 KB Output is correct
12 Correct 39 ms 344 KB Output is correct
13 Correct 35 ms 344 KB Output is correct
14 Correct 42 ms 344 KB Output is correct
15 Correct 38 ms 344 KB Output is correct
16 Correct 36 ms 344 KB Output is correct
17 Correct 36 ms 344 KB Output is correct

Subtask #2
49.400000001 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 111 ms 344 KB Output is correct (P=0.001, F=15.1, Q=14.0) -> 90.00 points
2 Correct 458 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=61.1) -> 50.48 points
3 Correct 775 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=114.4) -> 49.40 points
4 Correct 1556 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=227.7) -> 51.25 points
5 Correct 2151 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=293.0) -> 51.18 points
6 Correct 2767 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=407.2) -> 62.16 points
7 Correct 3753 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=559.9) -> 57.40 points
8 Correct 4486 ms 344 KB Output is correct (P=0.158765, F=639.1, Q=671.0) -> 75.02 points
9 Correct 5232 ms 344 KB Output is correct (P=0.2, F=731.4, Q=804.1) -> 64.40 points