Merge pull request gzc426#23 from black107/master

gzc426 · web-flow · commit de26358e3530 · 2018-11-24T23:30:20.000+08:00
1124
diff --git a/2019.11.25-leetcode80/忆季落花.md b/2019.11.25-leetcode80/忆季落花.md
@@ -0,0 +1,15 @@
+# -*- coding:utf-8 -*-
+class Solution:
+    def __init__(self):
+        self.stack1=[]
+        self.stack2=[]
+    def push(self, node):
+        self.stack1.append(node)
+    def pop(self):
+        if self.stack2:
+            return self.stack2.pop()
+        else:
+            while self.stack1:
+                self.stack2.append(self.stack1.pop())
+            return self.stack2.pop()
+        # return xx
