Eroare de compilare: user.cpp: In function ‘int mf::bfs(int, int)’: user.cpp:26: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int mf::max_flow(int, int)’: user.cpp:39: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void mf::clear()’: user.cpp:56: error: ‘memset’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:68: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:69: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:71: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:73: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result