Merge pull request #1479 from janeyziqinglin/master
更新 problems/0704.二分查找python版本; 更新0027.移除元素python版本;添加0977.有序数组的平方 python版本;添加0209.长度最小的子数组python版本;优化 0054.螺旋矩阵 python版本;更新面试题02.07.链表相交 python版本;优化0234.回文链表 python版本;优化0925.长按键入python版本
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@@ -685,7 +685,21 @@ class Solution {
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```
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Python3:
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```python
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//暴力解法:
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class Solution(object):
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def strStr(self, haystack, needle):
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"""
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:type haystack: str
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:type needle: str
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:rtype: int
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"""
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m,n=len(haystack),len(needle)
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for i in range(m):
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if haystack[i:i+n]==needle:
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return i
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return -1
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```
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```python
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// 方法一
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class Solution:
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