Compilare: user.c: In function ‘main’: user.c:8:23: warning: unused variable ‘p’ [-Wunused-variable] int i,j,l,r,s,m,n,p; ^ user.c:8:17: warning: unused variable ‘s’ [-Wunused-variable] int i,j,l,r,s,m,n,p; ^ user.c:8:15: warning: unused variable ‘r’ [-Wunused-variable] int i,j,l,r,s,m,n,p; ^ user.c:8:13: warning: unused variable ‘l’ [-Wunused-variable] int i,j,l,r,s,m,n,p; ^ user.c:9:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&n,&m); ^ user.c:11:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",v + i); ^ user.c:13:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",k+j); ^