Compilare: user.cpp:21:32: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] char line[MAX_LENGTH] = { NULL }; ^ user.cpp: In function ‘int Min(int, int)’: user.cpp:182:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘void Read()’: user.cpp:46:33: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(line, MAX_LENGTH, fin); ^