Compilare: user.cpp: In function ‘void citire()’: user.cpp:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘void afisare()’: user.cpp:83: warning: comparison between signed and unsigned integer expressions