Compilare: user.cpp: In function ‘int main()’: user.cpp:22:27: warning: format ‘%ld’ expects a matching ‘long int*’ argument [-Wformat=] fscanf(f1,"%ld%ld"); ^ user.cpp:22:27: warning: format ‘%ld’ expects a matching ‘long int*’ argument [-Wformat=] user.cpp:8:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%lu%lu",&n,&k); ^ user.cpp:11:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%lu",&x); ^ user.cpp:22:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%ld%ld"); ^ user.cpp:28:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%lu",&x); ^