规范格式

leetcode/0684.Redundant-Connection/684. Redundant Connection.go

@@ -0,0 +1,22 @@
+package leetcode
+
+import (
+	"github.com/halfrost/LeetCode-Go/template"
+)
+
+func findRedundantConnection(edges [][]int) []int {
+	if len(edges) == 0 {
+		return []int{}
+	}
+	uf, res := template.UnionFind{}, []int{}
+	uf.Init(len(edges) + 1)
+	for i := 0; i < len(edges); i++ {
+		if uf.Find(edges[i][0]) != uf.Find(edges[i][1]) {
+			uf.Union(edges[i][0], edges[i][1])
+		} else {
+			res = append(res, edges[i][0])
+			res = append(res, edges[i][1])
+		}
+	}
+	return res
+}