oj.uz

Submission #1073412

# Submission time Handle Problem Language Result Execution time Memory
1073412 2024-08-24T14:20:12 Z jer033 COVID tests (CEOI24_covid) C++17
47.78 / 100
 5922 ms 460 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;

int range_first(int x, int y)
{
    if (x>y)
        return -5;
    bool response = ask_query2(x, y);
    if (response == 0)
        return -5;
    if (x==y)
    {
        answer[x] = 1;
        return x;
    }
    int z = (x+y)/2;
    int k = range_first(x, z);
    if (k!=-5)
        return k;
    return range_first(z+1, y);
}

void range_query(int x, int y)
{
    int currx = x;
    while (currx!=-4)
    {
        currx = range_first(currx, y);
        currx++;
    }
}

void work(int m)
{
    int curr = 0;
    bool go_on = 1;
    while (go_on)
    {
        range_query(curr, min(curr+m-1, 999));
        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(200);
            else if (P < 0.02)
                work(125);
            else if (P < 0.03)
                work(25);
            else if (P < 0.05)
                work(13);
            else if (P < 0.10)
                work(8);
            else if (P < 0.15)
                work(4);
            else if (P < 0.19)
                work(4);
            else
                work(2);
            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 460 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 38 ms 344 KB Output is correct
2 Correct 46 ms 344 KB Output is correct
3 Correct 36 ms 344 KB Output is correct
4 Correct 41 ms 344 KB Output is correct
5 Correct 35 ms 344 KB Output is correct
6 Correct 36 ms 344 KB Output is correct
7 Correct 34 ms 344 KB Output is correct
8 Correct 46 ms 344 KB Output is correct
9 Correct 34 ms 344 KB Output is correct
10 Correct 38 ms 344 KB Output is correct
11 Correct 62 ms 344 KB Output is correct
12 Correct 55 ms 344 KB Output is correct
13 Correct 34 ms 340 KB Output is correct
14 Correct 51 ms 344 KB Output is correct
15 Correct 40 ms 344 KB Output is correct
16 Correct 40 ms 344 KB Output is correct
17 Correct 33 ms 344 KB Output is correct

Subtask #2
37.780000002 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 144 ms 344 KB Output is correct (P=0.001, F=15.1, Q=14.9) -> 90.00 points
2 Correct 472 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=64.6) -> 43.76 points
3 Correct 921 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=127.7) -> 37.78 points
4 Correct 1873 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=250.6) -> 40.28 points
5 Correct 2337 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=319.5) -> 41.12 points
6 Correct 3298 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=469.3) -> 42.33 points
7 Correct 4210 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=615.1) -> 44.60 points
8 Correct 5332 ms 344 KB Output is correct (P=0.158765, F=639.1, Q=778.6) -> 48.05 points
9 Correct 5922 ms 344 KB Output is correct (P=0.2, F=731.4, Q=861.0) -> 52.67 points