Merge pull request #157 from brenobaptista/cleaned-141

Cleaned 141

Author: halfrost

leetcode/0141.Linked-List-Cycle/141. Linked List Cycle.go

@@ -9,17 +9,16 @@ type ListNode = structures.ListNode
 
 /**
  * Definition for singly-linked list.
- * struct ListNode {
- *     int val;
- *     ListNode *next;
- *     ListNode(int x) : val(x), next(NULL) {}
- * };
+ * type ListNode struct {
+ *     Val int
+ *     Next *ListNode
+ * }
  */
 
 func hasCycle(head *ListNode) bool {
 	fast := head
 	slow := head
-	for slow != nil && fast != nil && fast.Next != nil {
+	for fast != nil && fast.Next != nil {
 		fast = fast.Next.Next
 		slow = slow.Next
 		if fast == slow {

leetcode/0141.Linked-List-Cycle/141. Linked List Cycle_test.go

@@ -1,6 +1,54 @@
 package leetcode
 
-import "testing"
+import (
+	"fmt"
+	"testing"
+
+	"github.com/halfrost/LeetCode-Go/structures"
+)
+
+type question141 struct {
+	para141
+	ans141
+}
+
+// para 是参数
+// one 代表第一个参数
+type para141 struct {
+	one []int
+}
+
+// ans 是答案
+// one 代表第一个答案
+type ans141 struct {
+	one bool
+}
 
 func Test_Problem141(t *testing.T) {
+
+	qs := []question141{
+
+		{
+			para141{[]int{3, 2, 0, -4}},
+			ans141{true},
+		},
+
+		{
+			para141{[]int{1, 2}},
+			ans141{true},
+		},
+
+		{
+			para141{[]int{1}},
+			ans141{false},
+		},
+	}
+
+	fmt.Printf("------------------------Leetcode Problem 141------------------------\n")
+
+	for _, q := range qs {
+		_, p := q.ans141, q.para141
+		fmt.Printf("【input】:%v       【output】:%v\n", p, hasCycle(structures.Ints2List(p.one)))
+	}
+	fmt.Printf("\n\n\n")
 }