feat : add golang solution

202508/808 soupServings/Go/main.go

@@ -0,0 +1,52 @@
+package main
+
+import ("fmt")
+
+type Solution struct{
+	dp map[[2]int]float64
+}
+
+func NewSolution() *Solution{
+	return &Solution{dp: make(map[[2]int]float64)}
+}
+
+func (s *Solution) SoupServings(n int)float64{
+	if n > 5000{
+		return 1.0
+	}
+
+	n = (n+24) /25
+
+	return s.helper(n, n)
+}
+
+func (s * Solution) helper(a, b int) float64 {
+	if a <= 0 && b <= 0{
+		return 0.5
+	}
+	if a <= 0{
+		return 1.0
+	}
+	if b <= 0{
+		return 0
+	}
+
+	if val, exist := s.dp[[2]int{a, b}]; exist{
+		return val
+	}
+
+	probability := 0.25 * (
+		s.helper(a-4, b) +
+		s.helper(a-3, b-1) +
+		s.helper(a-2, b-2) +
+		s.helper(a-1, b-3))
+
+	s.dp[[2]int {a, b}] = probability
+	return probability
+}
+
+func main(){
+	Solution := NewSolution()
+	ans := Solution.SoupServings(100)
+	fmt.Println(ans)
+}