Submission #1137647

#	Time	Username	Problem	Language	Result	Execution time	Memory
1137647		KaleemRazaSyed	COVID tests (CEOI24_covid)	C++20	Compilation error	0 ms	0 KiB

Main

#include<bits/stdc++.h>

using namespace std;

mt19937 rnd(std::chrono::system_clock::now().time_since_epoch().count());

int n;
double p;

bool ask(vector<bool> mask)
{
  assert(mask.size() == (size_t)n);
  
  std::string mask_str(n, ' ');
  for (int i = 0; i < n; i++)
    mask_str[i] = mask[i] ? '1' : '0';
  
  printf("Q %s\n", mask_str.c_str());
  fflush(stdout);
  
  char answer;
  scanf(" %c", &answer);
  return answer == 'P';
}

vector<int> fig(vector<int> a)
{
  if(a.empty()) return a;
  
  vector<bool> mask(n, false);
  vector<int> sol;
  for(int i : a) mask[i] = true;

  if(!ask(mask)) return sol;

  if(a.size() == 1) return a;


  vector<int> b;
  int c = min(a.size() - 1, a.size() * p + 1);
  for(int i = 0; i < a.size(); i++)
    {
      b.push_back(a[i]);
      if(b.size() == c || i + 1 == a.size())
	{
	  vector<int> solp = fig(b);
	  for(int x : solp)
	    sol.push_back(x);
	}
    }
  return sol;
}

vector<bool> solve()
{
  vector<int> idx(n);
  iota(idx.begin(), idx.end(), 0);

  for(int i = 0; i < n; i ++)
    {
      int j = rnd() % (i + 1);
      swap(idx[i], idx[j]);
    }

  vector<bool> v(n, false);
  vector<int> sol = fig(idx);
  for(int i : sol)
    v[i] = true;
  return v;
    
}

int main()
{
  int T;
  scanf("%d %lf %d", &n, &p, &T);


  for (int i = 0; i < T; i++) {
    vector<bool> answer = solve();
    assert(answer.size() == (size_t)n);
      
    string answer_str(n, ' ');
    for (int j = 0; j < n; j++)
      answer_str[j] = answer[j] ? '1' : '0';
      
    printf("A %s\n", answer_str.c_str());
    fflush(stdout);
      
    char verdict;
    scanf(" %c", &verdict);
    if (verdict == 'W')
      exit(0);
  }
    
  return 0;
}

Compilation message (stderr)

Main.cpp: In function 'std::vector<int> fig(std::vector<int>)':
Main.cpp:40:14: error: no matching function for call to 'min(std::vector<int>::size_type, double)'
   40 |   int c = min(a.size() - 1, a.size() * p + 1);
      |           ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/bits/specfun.h:45,
                 from /usr/include/c++/11/cmath:1935,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
                 from Main.cpp:1:
/usr/include/c++/11/bits/stl_algobase.h:230:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  230 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/11/bits/stl_algobase.h:230:5: note:   template argument deduction/substitution failed:
Main.cpp:40:14: note:   deduced conflicting types for parameter 'const _Tp' ('long unsigned int' and 'double')
   40 |   int c = min(a.size() - 1, a.size() * p + 1);
      |           ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/bits/specfun.h:45,
                 from /usr/include/c++/11/cmath:1935,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
                 from Main.cpp:1:
/usr/include/c++/11/bits/stl_algobase.h:278:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  278 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/11/bits/stl_algobase.h:278:5: note:   template argument deduction/substitution failed:
Main.cpp:40:14: note:   deduced conflicting types for parameter 'const _Tp' ('long unsigned int' and 'double')
   40 |   int c = min(a.size() - 1, a.size() * p + 1);
      |           ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/string:52,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from Main.cpp:1:
/usr/include/c++/11/bits/stl_algo.h:3449:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(std::initializer_list<_Tp>)'
 3449 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/11/bits/stl_algo.h:3449:5: note:   template argument deduction/substitution failed:
Main.cpp:40:14: note:   mismatched types 'std::initializer_list<_Tp>' and 'long unsigned int'
   40 |   int c = min(a.size() - 1, a.size() * p + 1);
      |           ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/string:52,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from Main.cpp:1:
/usr/include/c++/11/bits/stl_algo.h:3455:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(std::initializer_list<_Tp>, _Compare)'
 3455 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/11/bits/stl_algo.h:3455:5: note:   template argument deduction/substitution failed:
Main.cpp:40:14: note:   mismatched types 'std::initializer_list<_Tp>' and 'long unsigned int'
   40 |   int c = min(a.size() - 1, a.size() * p + 1);
      |           ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp: In function 'bool ask(std::vector<bool>)':
Main.cpp:22:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |   scanf(" %c", &answer);
      |   ~~~~~^~~~~~~~~~~~~~~~
Main.cpp: In function 'int main()':
Main.cpp:76:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   76 |   scanf("%d %lf %d", &n, &p, &T);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:91:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   91 |     scanf(" %c", &verdict);
      |     ~~~~~^~~~~~~~~~~~~~~~~