11 2020 档案

14. 最长公共前缀 Longest Common Prefix
摘要：Write a function to find the longest common prefix string amongst an array of strings. If there is no common prefix, return an empty string "". Input: 阅读全文
posted @ 2020-11-30 17:09 diameter 阅读(99) 评论(0) 推荐(0)
13. 罗马数字转整数 Roman to Integer
摘要：Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M. For example, 2 is written as II in Roman numeral, just two one's ad 阅读全文
posted @ 2020-11-30 15:27 diameter 阅读(106) 评论(0) 推荐(0)
12. 整数转罗马数字 Integer to Roman
摘要：Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M. For example, 2 is written as II in Roman numeral, just two one's ad 阅读全文
posted @ 2020-11-30 13:52 diameter 阅读(110) 评论(0) 推荐(0)
11. 盛最多水的容器 Container With Most Water
摘要：Given n non-negative integers a1, a2, ..., an , where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endp 阅读全文
posted @ 2020-11-30 12:43 diameter 阅读(99) 评论(0) 推荐(0)
10. 正则表达式匹配 Regular Expression Matching
摘要：Given an input string (s) and a pattern (p), implement regular expression matching with support for '.' and '*'where: '.' Matches any single character 阅读全文
posted @ 2020-11-28 18:03 diameter 阅读(115) 评论(0) 推荐(0)
9. 回文数 Palindrome Number
摘要：Determine whether an integer is a palindrome. An integer is a palindrome when it reads the same backward as forward. Follow up: Could you solve it wit 阅读全文
posted @ 2020-11-26 19:23 diameter 阅读(108) 评论(0) 推荐(0)
8. 字符串转换整数 (atoi) String to Integer
摘要：Implement atoi which converts a string to an integer. The function first discards as many whitespace characters as necessary until the first non-white 阅读全文
posted @ 2020-11-25 22:40 diameter 阅读(120) 评论(0) 推荐(0)
7. 整数反转 Reverse Integer
摘要：Given a 32-bit signed integer, reverse digits of an integer. Note:Assume we are dealing with an environment that could only store integers within the 阅读全文
posted @ 2020-11-24 22:47 diameter 阅读(105) 评论(0) 推荐(0)
6. Z 字形变换 ZigZag Conversion
摘要：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 font 阅读全文
posted @ 2020-11-24 17:51 diameter 阅读(152) 评论(0) 推荐(0)
python处理二进制文件（字节byte和比特bit）
摘要：一、如果按字节处理，可以用struct https://docs.python.org/2/library/struct.html By default, C types are represented in the machine’s native format and byte order, a 阅读全文
posted @ 2020-11-24 10:18 diameter 阅读(5259) 评论(0) 推荐(0)
5. 最长回文子串 Longest Palindromic Substring
摘要：Given a string s, return the longest palindromic substring in s. Input: s = "babad"Output: "bab"Note: "aba" is also a valid answer. 方法一： 暴力法，双层循环，验证所以 阅读全文
posted @ 2020-11-20 16:40 diameter 阅读(121) 评论(0) 推荐(0)
4. 寻找两个正序数组的中位数 Median of Two Sorted Arrays
摘要：Given two sorted arrays nums1 and nums2 of size m and n respectively, return the median of the two sorted arrays. The overall run time complexity shou 阅读全文
posted @ 2020-11-17 22:17 diameter 阅读(131) 评论(0) 推荐(0)
3. 无重复字符的最长子串 Longest Substring Without Repeating Characters
摘要：Given a string s, find the length of the longest substring without repeating characters. Input: s = "abcabcbb"Output: 3Explanation: The answer is "abc 阅读全文
posted @ 2020-11-08 11:44 diameter 阅读(86) 评论(0) 推荐(0)
2. 两数相加 Add Two Numbers
摘要：You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order, and each of their nodes conta 阅读全文
posted @ 2020-11-07 18:31 diameter 阅读(162) 评论(0) 推荐(0)
1. 两数之和 Two Sum
摘要：Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target. You may assume that each inp 阅读全文
posted @ 2020-11-07 15:53 diameter 阅读(137) 评论(0) 推荐(0)