Compilare: user.cpp: In function ‘void citire()’: user.cpp:17: warning: unused variable ‘a’ user.cpp:17: warning: unused variable ‘b’ user.cpp:20: 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:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int AfisareTransformari()’: user.cpp:79: warning: no return statement in function returning non-void