Eroare de compilare: user.cpp: In function ‘std::vector<int, std::allocator<int> > bfs(int, int)’: user.cpp:26: error: ‘memset’ was not declared in this scope user.cpp:50: warning: unused variable ‘child’ user.cpp: In function ‘void read_()’: user.cpp:100: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:102: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int main()’: user.cpp:109: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:110: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result