Compilare: user.cpp: In function ‘int main()’: user.cpp:41:7: warning: unused variable ‘A1’ [-Wunused-variable] int A1; ^ user.cpp:42:7: warning: unused variable ‘B1’ [-Wunused-variable] int B1; ^ user.cpp:28:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &t); ^ user.cpp:32:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%lld", &numar_initial); ^