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35. Search Insert Position Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would b 阅读全文
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28. Implement strStr() Return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. 解题思路： 1）判断needle字符串长度， 阅读全文
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27. Remove Element Given an array nums and a value val, remove all instances of that value in-place and return the new length. Do not allocate extra s 阅读全文
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26. Remove Duplicates from Sorted Array Given a sorted array nums, remove the duplicates in-place such that each element appear only once and return t 阅读全文