Compilare: user.c:22:8: warning: return type defaults to ‘int’ [enabled by default] inline add(int *v1, int *l1, int *v2, int l2, int mult){ ^ user.c: In function ‘main’: user.c:45:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &n); ^ user.c: In function ‘add’: user.c:40:1: warning: control reaches end of non-void function [-Wreturn-type] } ^