Compilare: user.c: In function ‘main’: user.c:12:9: warning: format ‘%d’ expects argument of type ‘int *’, but argument 3 has type ‘long int *’ [-Wformat=] fscanf(fin,"%d",&per[i]); ^ user.c:28:16: warning: initialization from incompatible pointer type [enabled by default] int *m=a; ^ user.c:29:14: warning: assignment from incompatible pointer type [enabled by default] a=b;b=m;k++; ^ user.c:9:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&n); ^ user.c:12:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&per[i]); ^