Submission #585950

#	Time	Username	Problem	Language	Result	Execution time	Memory
585950		serize	Connecting Supertrees (IOI20_supertrees)	C++17	Compilation error	0 ms	0 KiB

supertrees

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

int construct(std::vector<std::vector<int>> p) {
	int n = p.size();
	std::vector<std::vector<int>> answer;
	int mat[n+1][n+1];
	memset(mat,0,sizeof(mat));
	for(int i = 0; i < n-1; i++){
        mat[i][i+1] = 1;
        mat[i+1][i] = 1;
	}
	for(int i = 0; i < n; i++){
        vector <int> asd;
        for(int j = 0; j < n; j++){
            asd.push_back(mat[i][j]);
        }
        answer.push_back(asd);
	}
	build(answer);
	return 1;
}

Compilation message (stderr)

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:8:2: error: 'memset' was not declared in this scope
    8 |  memset(mat,0,sizeof(mat));
      |  ^~~~~~
supertrees.cpp:2:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    1 | #include "supertrees.h"
  +++ |+#include <cstring>
    2 | #include <vector>
supertrees.cpp:14:9: error: 'vector' was not declared in this scope
   14 |         vector <int> asd;
      |         ^~~~~~
supertrees.cpp:14:9: 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:14:17: error: expected primary-expression before 'int'
   14 |         vector <int> asd;
      |                 ^~~
supertrees.cpp:16:13: error: 'asd' was not declared in this scope
   16 |             asd.push_back(mat[i][j]);
      |             ^~~
supertrees.cpp:18:26: error: 'asd' was not declared in this scope
   18 |         answer.push_back(asd);
      |                          ^~~