Eroare de compilare: user.cpp: In function ‘void read()’: user.cpp:19: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘void bfs_X()’: user.cpp:35: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void bfs_Y()’: user.cpp:47: error: ‘memset’ was not declared in this scope user.cpp:53: warning: comparison between signed and unsigned integer expressions