原创 LeetCode練習1：Two Sum

題目 Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may a

2018-09-05 17:47:17

原创 LeetCode練習3：Longest Substring Without Repeating Characters

題目 Given a string, find the length of the longest substring without repeating characters. Examples: Given "abcabcbb",

2018-09-05 17:47:17

原创 LeetCode練習8：String to Integer (atoi)

題目 Implement atoi which converts a string to an integer. The function first discards as many whitespace characters as n

2018-09-05 17:47:17

原创 LeetCode練習10：Regular Expression Matching

題目 Given an input string (s) and a pattern (p), implement regular expression matching with support for '.' and '*'. ‘.

2018-09-05 17:47:17

原创 LeetCode練習9：Palindrome Number

題目 Determine whether an integer is a palindrome. Do this without extra space. Some Hints: Could negative integers be

2018-09-05 17:47:17

原创 LeetCode練習2：Add Two Numbers

題目 You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse or

2018-09-05 17:47:17 2

原创 LeetCode練習7：Reverse Integer

題目 Given a 32-bit signed integer, reverse digits of an integer. Example: Input: 123，Output: 321 Input: -123，Output

2018-09-05 17:47:16

原创 LeetCode練習4：Median of Two Sorted Arrays

題目 There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the two sorted arrays.

2018-09-05 17:47:16

原创 LeetCode練習6：ZigZag Conversion

題目 The string PAYPALISHIRING is written in a zigzag pattern on a given number of rows like this: (you may want to displ

2018-09-05 17:47:16

原创 LeetCode練習5：Longest Palindromic Substring

題目 Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000.

2018-09-05 17:47:16

原创 LeetCode練習13：Roman to Integer

題目 Given a roman numeral, convert it to an integer. Input is guaranteed to be within the range from 1 to 3999. 分析 題目的輸

2018-09-05 17:47:16

原创 Python 3 編程BUG總結【不斷更新】

問題1 SyntaxError: invalid character in identifier 可能原因： 存在中文狀態下的括號（），而不是() 代碼的末尾有空格

2018-09-05 17:47:16