oj.uz

Submission #1114882

# Submission time Handle Problem Language Result Execution time Memory
1114882 2024-11-19T17:41:37 Z PagodePaiva COVID tests (CEOI24_covid) C++17
10 / 100
 6098 ms 732712 KB 
#include<bits/stdc++.h>

using namespace std;

vector <int> idx;

  int n, t;


bool query(string s){
  cout << "Q " << s << '\n';
  cout << flush;
  char c;
  cin >> c;
  if(c == 'P')
    return true;
  return false;
}

string solve(string s){
  string s1, s2;
  int con = 0;
  for(int i = 0;i < s.size();i++){
    s1.push_back('0');
    s2.push_back('0');
    if(s[i] == '1') con++;
  }
  if(con == 1) return s;
  int d = 0, p = con/2;
  for(int i = 0;i < s.size();i++){
    if(s[idx[i]] == '1'){
      if(d < p){
        s1[idx[i]] = '1';
      }
      else{
        s2[idx[i]] = '1';
      }
      d++;
    }
  }
  string ans;
  for(int i = 0;i < n;i++)
    ans.push_back('0');
  if(query(s1)){
    string res = solve(s1);
    for(int i = 0;i < n;i++){
      if(res[i] == '1') ans[i] = '1';
    }
  }
  if(query(s2)){
    string res = solve(s2);
    for(int i = 0;i < n;i++){
      if(res[i] == '1') ans[i] = '1';
    }
  }
  return ans;
}

int main(){
  srand(time(0));
  double p;
  cin >> n >> p >> t;
  int tam = 1;
  while(t--){
    string s;
    for(int i = 0;i < n;i++){
      s.push_back('1');
    }
    for(int i = 0;i < n;i++){
      idx.push_back(i);
    }
    random_shuffle(idx.begin(), idx.end());
    if(!query(s)){
      cout << "A ";
      for(int i = 0;i < n;i++){
        cout << 0;
      }
      cout << '\n';
      cout << flush;
      char c;
      cin >> c;
      continue;
    }
    string res = solve(s);
    idx.clear();
    cout << "A " << res << '\n';
    cout << flush;
    char c;
    cin >> c;
    if(c == 'W')
      exit(0);
  }
}

Compilation message

Main.cpp: In function 'std::string solve(std::string)':
Main.cpp:23:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |   for(int i = 0;i < s.size();i++){
      |                 ~~^~~~~~~~~~
Main.cpp:30:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |   for(int i = 0;i < s.size();i++){
      |                 ~~^~~~~~~~~~
Main.cpp: In function 'int main()':
Main.cpp:63:7: warning: unused variable 'tam' [-Wunused-variable]
   63 |   int tam = 1;
      |       ^~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 336 KB Output is correct
2 Correct 55 ms 508 KB Output is correct
3 Correct 56 ms 336 KB Output is correct
4 Correct 54 ms 336 KB Output is correct
5 Correct 48 ms 336 KB Output is correct
6 Correct 54 ms 336 KB Output is correct
7 Correct 46 ms 336 KB Output is correct
8 Correct 45 ms 336 KB Output is correct
9 Correct 50 ms 336 KB Output is correct
10 Correct 31 ms 336 KB Output is correct
11 Correct 40 ms 336 KB Output is correct
12 Correct 41 ms 336 KB Output is correct
13 Correct 39 ms 336 KB Output is correct
14 Correct 40 ms 336 KB Output is correct
15 Correct 43 ms 336 KB Output is correct
16 Correct 53 ms 336 KB Output is correct
17 Correct 1 ms 504 KB Output is correct

Subtask #2
0.0 / 90.0

# Verdict Execution time Memory Grader output
1 Execution timed out 6098 ms 732712 KB Time limit exceeded (wall clock)
2 Halted 0 ms 0 KB -