Submission #347803

#	Time	Username	Problem	Language	Result	Execution time	Memory
347803		ponkung	Counting Mushrooms (IOI20_mushrooms)	C++14	Compilation error	0 ms	0 KiB

mushrooms

#include "mushrooms.h"
int count_mushrooms(int n)
{
	/*vector<int> m;
	for (int i = 0; i < n; i++)
		m.push_back(i);
	int c1 = use_machine(m);
	m = {0, 1};
	int c2 = use_machine(m);
	return c1+c2;*/
	vector<int> v;
	int it=1,cnt=1,op;
	for(int i=1;i<n;i++)
	{
		v.push_back(i-1);
		v.push_back(i);
		op=use_machine(v);
		v.clear();
		if(op==2)
		{
			it=1-it;
		}
		if(it==1)
		{
			++cnt;
		}
	}
	return cnt;
}

Compilation message (stderr)

mushrooms.cpp: In function 'int count_mushrooms(int)':
mushrooms.cpp:11:2: error: 'vector' was not declared in this scope; did you mean 'std::vector'?
   11 |  vector<int> v;
      |  ^~~~~~
      |  std::vector
In file included from /usr/include/c++/9/vector:67,
                 from mushrooms.h:1,
                 from mushrooms.cpp:1:
/usr/include/c++/9/bits/stl_vector.h:386:11: note: 'std::vector' declared here
  386 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
mushrooms.cpp:11:9: error: expected primary-expression before 'int'
   11 |  vector<int> v;
      |         ^~~
mushrooms.cpp:15:3: error: 'v' was not declared in this scope
   15 |   v.push_back(i-1);
      |   ^