Compilare: user.cpp: In function ‘int main()’: user.cpp:12:47: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘unsigned char*’ [-Wformat=] for(int i=1;i<=na;++i)fscanf(in,"%d",&a[i]); ^ user.cpp:13:47: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘unsigned char*’ [-Wformat=] for(int i=1;i<=nb;++i)fscanf(in,"%d",&b[i]); ^ user.cpp:10:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d",&na,&nb); ^ user.cpp:12:48: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i=1;i<=na;++i)fscanf(in,"%d",&a[i]); ^ user.cpp:13:48: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i=1;i<=nb;++i)fscanf(in,"%d",&b[i]); ^