Compilare: user.cpp: In function ‘void citire()’: user.cpp:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘void principal()’: user.cpp:113: warning: format ‘%ld’ expects type ‘long int*’, but argument 3 has type ‘int*’ user.cpp:113: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result