Compilare: user.cpp: In function ‘void citire()’: user.cpp:15: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result user.cpp:16: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result user.cpp: In function ‘void rezolvare()’: user.cpp:30: warning: array subscript has type ‘char’ user.cpp:30: warning: array subscript has type ‘char’ user.cpp:35: warning: array subscript has type ‘char’ user.cpp:36: warning: array subscript has type ‘char’