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题目: Reverse digits of an integer. Example1: x = 123, return 321Example2: x = -123, return -321 click to show spoilers. Have you thought about this? He 阅读全文
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题目: The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed f 阅读全文
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题目:Given a stringS, find the longest palindromic substring inS. You may assume that the maximum length ofSis 1000, and there exists one unique longest... 阅读全文
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题目:There are two sorted arrays A and B of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should ... 阅读全文
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题目： Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letter 阅读全文
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题目： You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a sin 阅读全文
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题目: Given an array of integers, find two numbers such that they add up to a specific target number. The function twoSum should return indices of the t 阅读全文