oj.uz

Submission #1095561

# Submission time Handle Problem Language Result Execution time Memory
1095561 2024-10-02T14:45:18 Z razivo COVID tests (CEOI24_covid) C++14
0 / 100
 7000 ms 344 KB 
#include <iostream>
#include <queue>
#include <set>
#include <vector>
#include <math.h>
using namespace std;
void answer(vector<bool> &res) {
    cout<<"A ";
    for (int i = 0; i < res.size(); ++i) {
        if(res[i]) cout<<"1";
        else cout<<"0";
    }
    cout<<endl;
    string c; cin>>c;
    if(c=="W") exit(0);
}
bool test(vector<int> &i,int n) {
    cin.tie(0);
    cout<<"Q ";
    vector<bool> t(n,false);
    for(auto u:i) {
        t[u]=true;
    }
    for(auto u:t) {
        if(u) cout<<1;
        else cout<<0;
    }
    cout<<endl;
    string c; cin>>c;
    return c=="P";
}
void check(vector<int> &n, vector<bool> &res,vector<int> &free,vector<int> &k,int N) {
    if(n.size()==0) return;
    if(n.size()==1) {
        res[n[0]]=true;
        return;
    }
    vector<int> toTest(k[n.size()]);
    for (int i = 0; i < k[n.size()]; ++i) {
        toTest[i]=n[i];
    }
    if(test(toTest,N)) {
        check(toTest,res,free,k,N);
        for (int i = k[n.size()]; i < n.size(); ++i) {
            free.push_back(n[i]);
        }
    }else {
        vector<int> u;
        for (int i = k[n.size()]; i < n.size(); ++i) {
            u.push_back(n[i]);
        }
        for (int i = 0; i < k[n.size()]; ++i) {
            res[i]=false;
        }
        check(u,res,free,k,N);
    }

}
int main()
{
    int N,T;
    double p;
    cin>>N>>p>>T;
    int background = -1/log2(1-p);
    if(background==0) background=1;
    vector<int> k(N+1);
    for (int i = 0; i < N+1; ++i) {
        double d =(log2(1-(1-pow(1-p,i))/2)/log2(1-p));
        k[i] = d;
        if(k[i]==0)k[i]=1;
    }
    for (int mi = 0; mi < T; ++mi) {
        vector<bool> res(N);
        vector<int> free;
        for (int i= 0; i < N; ++i) {
            free.push_back(i);
        }
        while(!free.empty()) {
            vector<int> o;
            for (int i = 0; i < background; ++i) {
                if(!free.empty()) {
                    o.push_back(free.back()); free.pop_back();
                }
            }
            if(test(o,N)) {
                check(o,res,free,k,N);
            }else {
                for (int i :o) {
                    res[i]=false;
                }
            }
        }
        answer(res);
    }
}

Compilation message

Main.cpp: In function 'void answer(std::vector<bool>&)':
Main.cpp:9:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<bool>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |     for (int i = 0; i < res.size(); ++i) {
      |                     ~~^~~~~~~~~~~~
Main.cpp: In function 'void check(std::vector<int>&, std::vector<bool>&, std::vector<int>&, std::vector<int>&, int)':
Main.cpp:44:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |         for (int i = k[n.size()]; i < n.size(); ++i) {
      |                                   ~~^~~~~~~~~~
Main.cpp:49:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |         for (int i = k[n.size()]; i < n.size(); ++i) {
      |                                   ~~^~~~~~~~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct

Subtask #1
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 68 ms 344 KB Output is correct
2 Correct 48 ms 344 KB Output is correct
3 Correct 43 ms 344 KB Output is correct
4 Correct 44 ms 344 KB Output is correct
5 Correct 44 ms 344 KB Output is correct
6 Correct 51 ms 344 KB Output is correct
7 Correct 39 ms 344 KB Output is correct
8 Correct 39 ms 344 KB Output is correct
9 Correct 48 ms 344 KB Output is correct
10 Correct 28 ms 344 KB Output is correct
11 Correct 52 ms 344 KB Output is correct
12 Correct 45 ms 344 KB Output is correct
13 Correct 39 ms 344 KB Output is correct
14 Correct 49 ms 344 KB Output is correct
15 Correct 49 ms 344 KB Output is correct
16 Correct 62 ms 344 KB Output is correct
17 Execution timed out 7064 ms 344 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #2
0.0 / 90.0

# Verdict Execution time Memory Grader output
1 Incorrect 60 ms 344 KB translate:wrong
2 Halted 0 ms 0 KB -