Compilare: user.c: In function ‘main’: user.c:19:5: warning: format ‘%d’ expects argument of type ‘int *’, but argument 3 has type ‘int’ [-Wformat=] fscanf(in,"%d", p); ^ user.c:11:18: warning: unused variable ‘m’ [-Wunused-variable] int p, n, k, m; ^ user.c:19:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d", p); ^ user.c:19:11: warning: ‘p’ is used uninitialized in this function [-Wuninitialized]