Submission #837071

#	Time	Username	Problem	Language	Result	Execution time	Memory
837071		JustAmethyst	Connecting Supertrees (IOI20_supertrees)	C++17	Compilation error	0 ms	0 KiB

supertrees

#include "supertrees.h"
#include <vector>

int construct(vector<vector<int>> p) {
	int n = p.size();
	vector<vector<int>> answer;
	for (int i = 0; i < n; i++) {
		vector<int> row;
		row.resize(n);
		answer.push_back(row);
	}

	for (int i = 1; i < n; ++i) {
		answer[0][i] = 1;
		answer[i][0] = 1;
	}
	build(answer);
	return 1;
}

Compilation message (stderr)

supertrees.cpp:4:15: error: 'int construct' redeclared as different kind of entity
    4 | int construct(vector<vector<int>> p) {
      |               ^~~~~~
In file included from supertrees.cpp:1:
supertrees.h:3:5: note: previous declaration 'int construct(std::vector<std::vector<int> >)'
    3 | int construct(std::vector<std::vector<int>> p);
      |     ^~~~~~~~~
supertrees.cpp:4:15: error: 'vector' was not declared in this scope
    4 | int construct(vector<vector<int>> p) {
      |               ^~~~~~
supertrees.cpp:4:15: note: suggested alternatives:
In file included from /usr/include/c++/10/vector:67,
                 from supertrees.h:1,
                 from supertrees.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:389:11: note:   'std::vector'
  389 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
In file included from supertrees.h:1,
                 from supertrees.cpp:1:
/usr/include/c++/10/vector:86:13: note:   'std::pmr::vector'
   86 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
      |             ^~~~~~
supertrees.cpp:4:22: error: 'vector' was not declared in this scope
    4 | int construct(vector<vector<int>> p) {
      |                      ^~~~~~
supertrees.cpp:4:22: note: suggested alternatives:
In file included from /usr/include/c++/10/vector:67,
                 from supertrees.h:1,
                 from supertrees.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:389:11: note:   'std::vector'
  389 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
In file included from supertrees.h:1,
                 from supertrees.cpp:1:
/usr/include/c++/10/vector:86:13: note:   'std::pmr::vector'
   86 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
      |             ^~~~~~
supertrees.cpp:4:29: error: expected primary-expression before 'int'
    4 | int construct(vector<vector<int>> p) {
      |                             ^~~