Compilare: user.cpp: In function ‘int main()’: user.cpp:16:23: warning: variable ‘rez’ set but not used [-Wunused-but-set-variable] long long rez; ^ user.cpp:7:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%lld%lld", &l,&c); ^