Implement day 2 in Terraform

2024/bonus/day02/is_valid/main.tf

@@ -0,0 +1,14 @@
+variable "report" {
+  type = list(number)
+}
+
+locals {
+  delta = [for i in range(1, length(var.report)) : var.report[i] - var.report[i - 1]]
+
+  all_negative = alltrue([for d in local.delta : d <= -1 && d >= -3])
+  all_positive = alltrue([for d in local.delta : d >= 1 && d <= 3])
+}
+
+output "valid" {
+  value = local.all_negative || local.all_positive
+}