add sol

leetcode/1863.SumofAllSubsetXORTotals/sol.go

@@ -0,0 +1,27 @@
+// https://leetcode.com/problems/sum-of-all-subset-xor-totals
+
+package main
+
+import (
+	"fmt"
+)
+
+func subsetXORSum(nums []int) int {
+	n := len(nums)
+	res := 0
+	for i := 1; i < 1<<n; i++ {
+		sum := 0
+		for k, v := range nums {
+			if i>>k&1 == 1 {
+				sum ^= v
+			}
+		}
+		res += sum
+	}
+	return res
+}
+
+func main() {
+	nums := []int{5, 1, 6}
+	fmt.Println(subsetXORSum(nums))
+}