fix error and supplement explanation

apachecn / apachecn-algo-zh

ApacheCN 数据结构与算法译文集

https://algo.apachecn.org/

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Closed mcrwayfun closed 5 years ago

mcrwayfun commented 5 years ago

Images can not load, so i remove them and supplement explanation. The time complexity of this question is O(n)