add Python code in linked_list.md to check circle in the linked list

billryan / algorithm-exercise

Data Structure and Algorithm notes. 数据结构与算法/leetcode/lintcode题解/

https://algorithm.yuanbin.me

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Closed luckyharryji closed 8 years ago

luckyharryji commented 8 years ago

add Python code for the fast/slow pointer in the linked list to check the circle inside

billryan commented 8 years ago

:+1: Thanks.