Create 0740-delete-and-earn.go

Author: razer96

go/0740-delete-and-earn.go

@@ -0,0 +1,41 @@
+func deleteAndEarn(nums []int) int {
+	count := make(map[int]int)
+
+	unique := make([]int, 0)
+
+	for _, num := range nums {
+		if _, ok := count[num]; !ok {
+			unique = append(unique, num)
+		}
+
+		count[num]++
+	}
+
+	sort.Ints(unique)
+
+	earn1, earn2 := 0, 0
+
+	for i := 0; i < len(unique); i++ {
+		currEarn := unique[i] * count[unique[i]]
+
+		if i > 0 && unique[i] == unique[i - 1] + 1 {
+			temp := earn2
+			earn2 = max(earn2, currEarn + earn1)
+			earn1 = temp
+		} else {
+			temp := earn2
+			earn2 = currEarn + earn2
+			earn1 = temp
+		}
+	}
+
+	return earn2
+}
+
+func max(a, b int) int {
+	if a > b {
+		return a
+	}
+
+	return b
+}