add sol

Author: ductnn

leetcode/daily/1726/sol.go

@@ -0,0 +1,46 @@
+package main
+
+import "fmt"
+
+func tupleSameProduct(nums []int) int {
+	productCount := make(map[int]int)
+	count := 0
+	n := len(nums)
+	for i := 0; i < n; i++ {
+		for j := i + 1; j < n; j++ {
+			product := nums[i] * nums[j]
+			if val, ok := productCount[product]; ok {
+				count += val
+			}
+			productCount[product]++
+		}
+	}
+
+	return count * 8
+}
+
+func tupleSameProduct1(nums []int) int {
+	productCount := make(map[int]int)
+	n := len(nums)
+
+	for i := 0; i < n; i++ {
+		for j := i + 1; j < n; j++ {
+			product := nums[i] * nums[j]
+			productCount[product]++
+			fmt.Println(productCount)
+		}
+
+	}
+
+	count := 0
+	for _, v := range productCount {
+		count += v * (v - 1) * 8
+	}
+
+	return count / 2
+}
+
+func main() {
+	nums := []int{1, 2, 4, 5, 10}
+	println(tupleSameProduct1(nums))
+}