Compilare: user.cpp:8: warning: second argument of ‘int main(int, char*)’ should be ‘char **’ user.cpp: In function ‘int main(int, char*)’: user.cpp:30: warning: unused variable ‘ie’ user.cpp:31: warning: unused variable ‘is’ user.cpp:18: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:19: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result