Submission #1060321

#	Time	Username	Problem	Language	Result	Execution time	Memory
1060321		pera	Hidden Sequence (info1cup18_hidden)	C++17	Compilation error	0 ms	0 KiB

hidden

#include<bits/stdc++.h>
#include "grader.h"
using namespace std;
int zero = 0 , one = 0;
bool isSubsequence(vector<int> x){
   cout << "? ";
   for(int y : x){
      cout << y << " ";
   }
   cout << endl;
   int X;
   cin >> X;
   return X;
}
vector<int> findSequence(int N){
   vector<int> ans , X;
   for(int i = 1;i <= N / 2 + 1;i ++){
      X.emplace_back(1);
      if(isSubsequence(X)){
         one = i;
         zero = N - i;
      }
   }
   if(one == N / 2 + 1){
      vector<int>().swap(X);
      for(int i = 1;i <= N / 2 + 1;i ++){
         X.emplace_back(0);
         if(isSubsequence(X)){
            zero = i;
            one = N - i;
         }
      }
   }
   vector<int> o(2);
   auto is_Zero = [&](){
      vector<int> v;
      if(o[0] + (one - o[1]) <= N / 2 + 1){
         for(int x = 1;x <= o[0] + 1;x ++){
            v.emplace_back(0);
         }
         for(int x = 1;x <= one - o[1];x ++){
            v.emplace_back(1);
         }
         return isSubsequence(v);
      }else{
         for(int x = 1;x <= o[1] + 1;x ++){
            v.emplace_back(1);
         }
         for(int x = 1;x <= zero - o[0];x ++){
            v.emplace_back(0);
         }
         return !isSubsequence(v);
      }
   };
   for(int i = 1;i <= N;i ++){
      ans.emplace_back(!is_Zero());
      o[ans.back()]++;
   }
   return ans;
}

Compilation message (stderr)

grader.cpp: In function 'int main()':
grader.cpp:28:26: warning: format '%d' expects argument of type 'int', but argument 3 has type 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wformat=]
   28 |     fprintf (fifo_out, "%d\n", ans.size ());
      |                         ~^     ~~~~~~~~~~~
      |                          |              |
      |                          int            std::vector<int>::size_type {aka long unsigned int}
      |                         %ld
grader.cpp:29:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |     for (int i=0; i<ans.size () && i < N; i++)
      |                   ~^~~~~~~~~~~~
/usr/bin/ld: /tmp/ccBuC4sX.o: in function `isSubsequence(std::vector<int, std::allocator<int> >)':
grader.cpp:(.text+0x0): multiple definition of `isSubsequence(std::vector<int, std::allocator<int> >)'; /tmp/ccoLZJAY.o:hidden.cpp:(.text+0x0): first defined here
collect2: error: ld returned 1 exit status