Renamed 'cmd' to 'kg' so that go install works correctly

kg/helpers.go

@@ -0,0 +1,27 @@
+package main
+
+import "slices"
+
+type character interface {
+	int | rune
+}
+
+// Returns all elements in slice A that are NOT in slice B
+func setDifference[T comparable](s1 []T, s2 []T) []T {
+	toReturn := make([]T, 0, len(s1))
+	for _, val := range s1 {
+		if !slices.Contains(s2, val) {
+			toReturn = append(toReturn, val)
+		}
+	}
+	return toReturn
+}
+
+// Generate numbers in a range - start (inclusive) to end (exclusive)
+func genRange[T character](start, end T) []T {
+	toRet := make([]T, end-start)
+	for i := start; i < end; i++ {
+		toRet[i-start] = i
+	}
+	return toRet
+}