2021 Day 7 Complete!

helpers/helpers.go

@@ -30,6 +30,23 @@ const (
 	SHRUG = "¯\\_(ツ)_/¯"
 )
 
+// Fact returns the factorial of the given int
+func Fact(x int) int {
+	var ret int
+	for i := 0; i <= x; i++ {
+		ret += i
+	}
+	return ret
+}
+
+// Abs returns the absolute value of the given int
+func Abs(x int) int {
+	if x < 0 {
+		return x * -1
+	}
+	return x
+}
+
 // Gcd Finds the greatest common denominator
 func Gcd(x, y int) int {
 	for y != 0 {