2020 Day 24 Complete

I made some minor changes to helpers/coordinate... I probably need to go
back and fix several previous years/days.

helpers/coordinate.go

@@ -18,16 +18,16 @@ func (c Coordinate) Relative(t Coordinate) Coordinate {
 	return Coordinate{X: c.X + t.X, Y: c.Y + t.Y}
 }
 
-func (c *Coordinate) North() Coordinate {
+func (c Coordinate) North() Coordinate {
 	return Coordinate{X: c.X, Y: c.Y - 1}
 }
-func (c *Coordinate) East() Coordinate {
+func (c Coordinate) East() Coordinate {
 	return Coordinate{X: c.X + 1, Y: c.Y}
 }
-func (c *Coordinate) South() Coordinate {
+func (c Coordinate) South() Coordinate {
 	return Coordinate{X: c.X, Y: c.Y + 1}
 }
-func (c *Coordinate) West() Coordinate {
+func (c Coordinate) West() Coordinate {
 	return Coordinate{X: c.X - 1, Y: c.Y}
 }
 func (c *Coordinate) NW() Coordinate {

helpers/helpers.go

@@ -340,3 +340,17 @@ func IsPrime(value int) bool {
 	}
 	return value > 1
 }
+
+func Min(v1, v2 int) int {
+	if v1 < v2 {
+		return v1
+	}
+	return v2
+}
+
+func Max(v1, v2 int) int {
+	if v1 > v2 {
+		return v1
+	}
+	return v2
+}