Compilare: user.cpp: In function ‘int main()’: user.cpp:37:12: warning: variable ‘g’ set but not used [-Wunused-but-set-variable] FILE *f,*g; ^ user.cpp:47:30: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(sir, lungime_f, 1, f); ^