Compilare: user.cpp: In function ‘long int verifica(long int*, long int*)’: user.cpp:7: warning: unused variable ‘nre’ user.cpp:7: warning: unused variable ‘j’ user.cpp: In function ‘void citire()’: user.cpp:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:43: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result