Merge pull request gzc426#294 from HanqingZheng/master

gzc426 · web-flow · commit 0d6facf94cf7 · 2018-12-04T17:26:30.000+08:00
今天和明天的
diff --git a/2018.12.3-leetcode58/家 b/2018.12.3-leetcode58/家
@@ -0,0 +1,11 @@
+```
+func lengthOfLastWord(s string) int {
+  l := len(s)
+	i := l-1
+	count := 0
+	for ;i>=0 && s[i] == ' ';i--{}
+	for ;i>=0 && s[i] != ' ';i--{count++}
+	return count
+}
+    
+```
diff --git a/2018.12.4-leetcode101/家.md b/2018.12.4-leetcode101/家.md
@@ -0,0 +1,11 @@
+```
+func isSymmetric(root *TreeNode) bool {
+    return isw(root,root)
+}
+func isw (left *TreeNode,right *TreeNode) bool{
+    if left == nil && right == nil {return true}
+    if left == nil || right == nil{return false}
+    return left.Val == right.Val && isw(left.Left,right.Right)&&isw(left.Right,right.Left)
+}
+    
+```
