随笔分类 - LeetCode
LeetCode做题思路。菜鸟一枚，不喜勿喷，谢谢。
摘要：题目：删除有序链表中的重复元素（难度：简单） Given a sorted linked list, delete all duplicates such that each element appear only once. 思路 应该属于链表的基本操作。因为链表是有序的，那么只需从头遍历，跳过相
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摘要：题目：爬楼梯（难度：简单） You are climbing a stair case. It takes n steps to reach to the top. Each time you can either climb 1 or 2 steps. In how many distinct w
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摘要：题目：求x的平方根（难度：简单） Implement int sqrt(int x). Compute and return the square root of x, where x is guaranteed to be a non negative integer. Since the ret
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摘要：题目：二进制求和（难度：简单） Given two binary strings, return their sum (also a binary string). The input strings are both non empty and contains only characters 1
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摘要：题目：加一（难度：简单） Given a non empty array of digits representing a non negative integer, plus one to the integer. The digits are stored such that the most
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