09 2020 档案

024 Concate Swaps
摘要：we can have a split the s into string array. and we swap it. and ... 阅读全文
posted @ 2020-09-29 12:20 EvanMeetTheWorld 阅读(8) 评论(0) 推荐(0)
024 Concate Swaps
摘要：we can have a split the s into string array. and we swap it. and ... 阅读全文
posted @ 2020-09-29 12:20 EvanMeetTheWorld 阅读(8) 评论(0) 推荐(0)
022 Plus/subtract Number
摘要：given an integer. -±±+all the digits, get the final results. we ca... 阅读全文
posted @ 2020-09-29 12:04 EvanMeetTheWorld 阅读(11) 评论(0) 推荐(0)
022 Plus/subtract Number
摘要：given an integer. -±±+all the digits, get the final results. we ca... 阅读全文
posted @ 2020-09-29 12:04 EvanMeetTheWorld 阅读(17) 评论(0) 推荐(0)
021 Black White Sort Matrix
摘要：now we are given a matrix full of positive integers. and an array ... 阅读全文
posted @ 2020-09-29 11:58 EvanMeetTheWorld 阅读(18) 评论(0) 推荐(0)
021 Black White Sort Matrix
摘要：now we are given a matrix full of positive integers. and an array ... 阅读全文
posted @ 2020-09-29 11:58 EvanMeetTheWorld 阅读(13) 评论(0) 推荐(0)
020 K occourrence
摘要：given a string word, a string sequence if word only happens in seq... 阅读全文
posted @ 2020-09-29 11:34 EvanMeetTheWorld 阅读(25) 评论(0) 推荐(0)
020 K occourrence
摘要：given a string word, a string sequence if word only happens in seq... 阅读全文
posted @ 2020-09-29 11:34 EvanMeetTheWorld 阅读(16) 评论(0) 推荐(0)
019 Check ABC(longest subarray check)
摘要：we are given three array of integers. let say a, b and c c is an a... 阅读全文
posted @ 2020-09-29 10:44 EvanMeetTheWorld 阅读(39) 评论(0) 推荐(0)
019 Check ABC(longest subarray check)
摘要：we are given three array of integers. let say a, b and c c is an a... 阅读全文
posted @ 2020-09-29 10:44 EvanMeetTheWorld 阅读(24) 评论(0) 推荐(0)
017 isZigZag
摘要：given an array, for each triplet, return if it is zigzag or not, a... 阅读全文
posted @ 2020-09-29 09:16 EvanMeetTheWorld 阅读(12) 评论(0) 推荐(0)
017 isZigZag
摘要：given an array, for each triplet, return if it is zigzag or not, a... 阅读全文
posted @ 2020-09-29 09:16 EvanMeetTheWorld 阅读(20) 评论(0) 推荐(0)
014 Matrix Queries
摘要：given a matrix, n * m the value of each position of this matrix is... 阅读全文
posted @ 2020-09-29 08:33 EvanMeetTheWorld 阅读(23) 评论(0) 推荐(0)
014 Matrix Queries
摘要：given a matrix, n * m the value of each position of this matrix is... 阅读全文
posted @ 2020-09-29 08:33 EvanMeetTheWorld 阅读(20) 评论(0) 推荐(0)
012 Border Sort
摘要：given a nn matrix full of integers. now we know matrix has many la... 阅读全文
posted @ 2020-09-29 05:53 EvanMeetTheWorld 阅读(18) 评论(0) 推荐(0)
012 Border Sort
摘要：given a nn matrix full of integers. now we know matrix has many la... 阅读全文
posted @ 2020-09-29 05:53 EvanMeetTheWorld 阅读(16) 评论(0) 推荐(0)
011 Reverse Digits in Pairs
摘要：reverse them in pair public class reverseDigitspair { public in... 阅读全文
posted @ 2020-09-29 05:36 EvanMeetTheWorld 阅读(14) 评论(0) 推荐(0)
011 Reverse Digits in Pairs
摘要：reverse them in pair public class reverseDigitspair { public in... 阅读全文
posted @ 2020-09-29 05:36 EvanMeetTheWorld 阅读(14) 评论(0) 推荐(0)
009 Justify Newspaper Text
摘要：public class justifyNewspaperText { public static final String... 阅读全文
posted @ 2020-09-29 05:16 EvanMeetTheWorld 阅读(17) 评论(0) 推荐(0)
009 Justify Newspaper Text
摘要：public class justifyNewspaperText { public static final String... 阅读全文
posted @ 2020-09-29 05:16 EvanMeetTheWorld 阅读(20) 评论(0) 推荐(0)
006 Given a matrix, rearrange its number
摘要：first, sort the values in this matrix by its frequency. if there i... 阅读全文
posted @ 2020-09-28 05:39 EvanMeetTheWorld 阅读(13) 评论(0) 推荐(0)
006 Given a matrix, rearrange its number
摘要：first, sort the values in this matrix by its frequency. if there i... 阅读全文
posted @ 2020-09-28 05:39 EvanMeetTheWorld 阅读(25) 评论(0) 推荐(0)
005 Number of ways to remove one digit from a string so it lexicographically smaller than other se
摘要：Given two string, s and t. both consisting of lowercase letters an... 阅读全文
posted @ 2020-09-28 05:03 EvanMeetTheWorld 阅读(27) 评论(0) 推荐(0)
005 Number of ways to remove one digit from a string so it lexicographically smaller than other se
摘要：Given two string, s and t. both consisting of lowercase letters an... 阅读全文
posted @ 2020-09-28 05:03 EvanMeetTheWorld 阅读(18) 评论(0) 推荐(0)
004 Can Make Triangle
摘要：given an array with all the elements are positive. check if elemen... 阅读全文
posted @ 2020-09-28 04:35 EvanMeetTheWorld 阅读(12) 评论(0) 推荐(0)
004 Can Make Triangle
摘要：given an array with all the elements are positive. check if elemen... 阅读全文
posted @ 2020-09-28 04:35 EvanMeetTheWorld 阅读(8) 评论(0) 推荐(0)
002 给一串string 比如“I have a card”再给一个键盘char[]。 键盘里有h，a，v，e。问句子里几个字可以被键盘打出来。只有have和a可以。 然后所有标点符号都可以被打出来
摘要：get the number of words where all of its characters are in the giv... 阅读全文
posted @ 2020-09-28 04:15 EvanMeetTheWorld 阅读(20) 评论(0) 推荐(0)
002 给一串string 比如“I have a card”再给一个键盘char[]。 键盘里有h，a，v，e。问句子里几个字可以被键盘打出来。只有have和a可以。 然后所有标点符号都可以被打出来
摘要：get the number of words where all of its characters are in the giv... 阅读全文
posted @ 2020-09-28 04:15 EvanMeetTheWorld 阅读(24) 评论(0) 推荐(0)
001 给一串int[] 找出所有arr[i-1]+arr[i+1]=2*arr[i]的情况
摘要：idea: from the index1 to indexlength-2, iterate everything if arr.... 阅读全文
posted @ 2020-09-28 04:00 EvanMeetTheWorld 阅读(30) 评论(0) 推荐(0)
001 给一串int[] 找出所有arr[i-1]+arr[i+1]=2*arr[i]的情况
摘要：idea: from the index1 to indexlength-2, iterate everything if arr.... 阅读全文
posted @ 2020-09-28 04:00 EvanMeetTheWorld 阅读(15) 评论(0) 推荐(0)
how to initialize a stack?
摘要：Stack stack = new Stack() is not recommended. and Deque deque = ne... 阅读全文
posted @ 2020-09-14 01:27 EvanMeetTheWorld 阅读(18) 评论(0) 推荐(0)
how to initialize a stack?
摘要：Stack stack = new Stack() is not recommended. and Deque deque = ne... 阅读全文
posted @ 2020-09-14 01:27 EvanMeetTheWorld 阅读(14) 评论(0) 推荐(0)
Merge Two Sorted Lists
摘要：it’s like the “merge” part in merge sort. pay attention, it is req... 阅读全文
posted @ 2020-09-14 00:14 EvanMeetTheWorld 阅读(14) 评论(0) 推荐(0)
Merge Two Sorted Lists
摘要：it’s like the “merge” part in merge sort. pay attention, it is req... 阅读全文
posted @ 2020-09-14 00:14 EvanMeetTheWorld 阅读(20) 评论(0) 推荐(0)
Add Two Numbers
摘要：add two linkedlist. example: Input: (2 -> 4 -> 3) + (5 -> 6 -> 4) ... 阅读全文
posted @ 2020-09-13 23:29 EvanMeetTheWorld 阅读(8) 评论(0) 推荐(0)
Add Two Numbers
摘要：add two linkedlist. example: Input: (2 -> 4 -> 3) + (5 -> 6 -> 4) ... 阅读全文
posted @ 2020-09-13 23:29 EvanMeetTheWorld 阅读(10) 评论(0) 推荐(0)
Trapping Rain Water
摘要：another classic problem. use double direction two pointers. class ... 阅读全文
posted @ 2020-09-13 23:00 EvanMeetTheWorld 阅读(17) 评论(0) 推荐(0)
Trapping Rain Water
摘要：another classic problem. use double direction two pointers. class ... 阅读全文
posted @ 2020-09-13 23:00 EvanMeetTheWorld 阅读(16) 评论(0) 推荐(0)
Reorder Log Files
摘要：You have an array of logs. Each log is a space delimited string of... 阅读全文
posted @ 2020-09-13 09:57 EvanMeetTheWorld 阅读(17) 评论(0) 推荐(0)
Reorder Log Files
摘要：You have an array of logs. Each log is a space delimited string of... 阅读全文
posted @ 2020-09-13 09:57 EvanMeetTheWorld 阅读(19) 评论(0) 推荐(0)
Most Common Word
摘要：Given a paragraph and a list of banned words, return the most freq... 阅读全文
posted @ 2020-09-13 09:20 EvanMeetTheWorld 阅读(37) 评论(0) 推荐(0)
Most Common Word
摘要：Given a paragraph and a list of banned words, return the most freq... 阅读全文
posted @ 2020-09-13 09:20 EvanMeetTheWorld 阅读(19) 评论(0) 推荐(0)
Valid Parentheses
摘要：classic stack problem. class Solution { public boolean isValid(... 阅读全文
posted @ 2020-09-13 01:15 EvanMeetTheWorld 阅读(13) 评论(0) 推荐(0)
Valid Parentheses
摘要：classic stack problem. class Solution { public boolean isValid(... 阅读全文
posted @ 2020-09-13 01:15 EvanMeetTheWorld 阅读(17) 评论(0) 推荐(0)
First Unique Character in a String
摘要：Given a string, find the first non-repeating character in it and r... 阅读全文
posted @ 2020-09-13 00:46 EvanMeetTheWorld 阅读(5) 评论(0) 推荐(0)
First Unique Character in a String
摘要：Given a string, find the first non-repeating character in it and r... 阅读全文
posted @ 2020-09-13 00:46 EvanMeetTheWorld 阅读(13) 评论(0) 推荐(0)
Integer to English Words
摘要：essentially, this is exactly the same with Integer to Roman or Int... 阅读全文
posted @ 2020-09-13 00:13 EvanMeetTheWorld 阅读(12) 评论(0) 推荐(0)
Integer to English Words
摘要：essentially, this is exactly the same with Integer to Roman or Int... 阅读全文
posted @ 2020-09-13 00:13 EvanMeetTheWorld 阅读(22) 评论(0) 推荐(0)
Missing Number
摘要：Given an array containing n distinct numbers taken from 0, 1, 2, …... 阅读全文
posted @ 2020-09-12 23:54 EvanMeetTheWorld 阅读(18) 评论(0) 推荐(0)
Missing Number
摘要：Given an array containing n distinct numbers taken from 0, 1, 2, …... 阅读全文
posted @ 2020-09-12 23:54 EvanMeetTheWorld 阅读(22) 评论(0) 推荐(0)
Compare Version Numbers
摘要：given two version numbers in the format of string, if 1>2, return ... 阅读全文
posted @ 2020-09-12 12:21 EvanMeetTheWorld 阅读(16) 评论(0) 推荐(0)
Compare Version Numbers
摘要：given two version numbers in the format of string, if 1>2, return ... 阅读全文
posted @ 2020-09-12 12:21 EvanMeetTheWorld 阅读(15) 评论(0) 推荐(0)
Minimum Window Substring (Unsolved)
摘要：given two strings, say it’s S and T. we need to find the minimum w... 阅读全文
posted @ 2020-09-12 11:27 EvanMeetTheWorld 阅读(13) 评论(0) 推荐(0)
Minimum Window Substring (Unsolved)
摘要：given two strings, say it’s S and T. we need to find the minimum w... 阅读全文
posted @ 2020-09-12 11:27 EvanMeetTheWorld 阅读(21) 评论(0) 推荐(0)
Group Anagrams
摘要：given an array of strings, return a 2d array that each element in ... 阅读全文
posted @ 2020-09-12 01:15 EvanMeetTheWorld 阅读(23) 评论(0) 推荐(0)
Group Anagrams
摘要：given an array of strings, return a 2d array that each element in ... 阅读全文
posted @ 2020-09-12 01:15 EvanMeetTheWorld 阅读(19) 评论(0) 推荐(0)
Rotate Image
摘要：Rotate a matrix clockwise, 90 degree. do it in-place. how to do it... 阅读全文
posted @ 2020-09-11 11:13 EvanMeetTheWorld 阅读(20) 评论(0) 推荐(0)
Rotate Image
摘要：Rotate a matrix clockwise, 90 degree. do it in-place. how to do it... 阅读全文
posted @ 2020-09-11 11:13 EvanMeetTheWorld 阅读(20) 评论(0) 推荐(0)
Implement strStr()
摘要：basically, we need to implement indexOf() so this problem is actua... 阅读全文
posted @ 2020-09-11 10:47 EvanMeetTheWorld 阅读(21) 评论(0) 推荐(0)
Implement strStr()
摘要：basically, we need to implement indexOf() so this problem is actua... 阅读全文
posted @ 2020-09-11 10:47 EvanMeetTheWorld 阅读(12) 评论(0) 推荐(0)
按钮文本左对齐/右对齐
摘要：https://www.jianshu.com/p/9f0227876b6c 但是好像只对UIButton有效 对Attribute... 阅读全文
posted @ 2020-09-09 08:45 EvanMeetTheWorld 阅读(29) 评论(0) 推荐(0)
按钮文本左对齐/右对齐
摘要：https://www.jianshu.com/p/9f0227876b6c 但是好像只对UIButton有效 对Attribute... 阅读全文
posted @ 2020-09-09 08:45 EvanMeetTheWorld 阅读(14) 评论(0) 推荐(0)
如何提升IOS app流畅度
摘要：reference: https://blog.ibireme.com/2015/11/12/smooth_user_interfa... 阅读全文
posted @ 2020-09-09 01:02 EvanMeetTheWorld 阅读(25) 评论(0) 推荐(0)
如何提升IOS app流畅度
摘要：reference: https://blog.ibireme.com/2015/11/12/smooth_user_interfa... 阅读全文
posted @ 2020-09-09 01:02 EvanMeetTheWorld 阅读(19) 评论(0) 推荐(0)
3 Sum Closest
摘要：now we need find the triplet in a given array. we only need to fin... 阅读全文
posted @ 2020-09-08 11:56 EvanMeetTheWorld 阅读(20) 评论(0) 推荐(0)
3 Sum Closest
摘要：now we need find the triplet in a given array. we only need to fin... 阅读全文
posted @ 2020-09-08 11:56 EvanMeetTheWorld 阅读(14) 评论(0) 推荐(0)
3 Sum
摘要：classic sum problems. given an array may contains duplicates, retu... 阅读全文
posted @ 2020-09-07 23:48 EvanMeetTheWorld 阅读(13) 评论(0) 推荐(0)
3 Sum
摘要：classic sum problems. given an array may contains duplicates, retu... 阅读全文
posted @ 2020-09-07 23:48 EvanMeetTheWorld 阅读(11) 评论(0) 推荐(0)
Integer to Roman
摘要：given rules, to some kind of covert stuff. class Solution { pub... 阅读全文
posted @ 2020-09-07 11:20 EvanMeetTheWorld 阅读(19) 评论(0) 推荐(0)
Integer to Roman
摘要：given rules, to some kind of covert stuff. class Solution { pub... 阅读全文
posted @ 2020-09-07 11:20 EvanMeetTheWorld 阅读(19) 评论(0) 推荐(0)
Container With Most Water
摘要：classic water container problems. using left and right pointer. fi... 阅读全文
posted @ 2020-09-07 11:16 EvanMeetTheWorld 阅读(13) 评论(0) 推荐(0)
Container With Most Water
摘要：classic water container problems. using left and right pointer. fi... 阅读全文
posted @ 2020-09-07 11:16 EvanMeetTheWorld 阅读(19) 评论(0) 推荐(0)
String to Integer (atoi)
摘要：convert string to integer. pay attention to the following problems... 阅读全文
posted @ 2020-09-07 10:58 EvanMeetTheWorld 阅读(16) 评论(0) 推荐(0)
String to Integer (atoi)
摘要：convert string to integer. pay attention to the following problems... 阅读全文
posted @ 2020-09-07 10:58 EvanMeetTheWorld 阅读(20) 评论(0) 推荐(0)
LeetCode003 Longest Substring Without Repeating Characters
摘要：we just need to return the number of that longest substring. subst... 阅读全文
posted @ 2020-09-07 10:00 EvanMeetTheWorld 阅读(14) 评论(0) 推荐(0)
LeetCode003 Longest Substring Without Repeating Characters
摘要：we just need to return the number of that longest substring. subst... 阅读全文
posted @ 2020-09-07 10:00 EvanMeetTheWorld 阅读(14) 评论(0) 推荐(0)
衡量一个社交类APP的指标有哪些
摘要：https://www.zhihu.com/question/27693510 第一个回答的用户给出了九个比较详尽的指标： 作者：知... 阅读全文
posted @ 2020-09-06 00:49 EvanMeetTheWorld 阅读(147) 评论(0) 推荐(0)
衡量一个社交类APP的指标有哪些
摘要：https://www.zhihu.com/question/27693510 第一个回答的用户给出了九个比较详尽的指标： 作者：知... 阅读全文
posted @ 2020-09-06 00:49 EvanMeetTheWorld 阅读(86) 评论(0) 推荐(0)
如何提升APP日活（DAU）？
摘要：https://www.zhihu.com/question/28385350 第一个回答还是给人一些启发的。 一、找到用户兴趣点 ... 阅读全文
posted @ 2020-09-06 00:36 EvanMeetTheWorld 阅读(133) 评论(0) 推荐(0)
如何提升APP日活（DAU）？
摘要：https://www.zhihu.com/question/28385350 第一个回答还是给人一些启发的。 一、找到用户兴趣点 ... 阅读全文
posted @ 2020-09-06 00:36 EvanMeetTheWorld 阅读(161) 评论(0) 推荐(0)
Apple官方用户交互指南
摘要：https://developer.apple.com/design/human-interface-guidelines/ios/... 阅读全文
posted @ 2020-09-06 00:24 EvanMeetTheWorld 阅读(23) 评论(0) 推荐(0)
Apple官方用户交互指南
摘要：https://developer.apple.com/design/human-interface-guidelines/ios/... 阅读全文
posted @ 2020-09-06 00:24 EvanMeetTheWorld 阅读(17) 评论(0) 推荐(0)
如何设计让用户满意的IOS应用？
摘要：reference: https://cdc.tencent.com/2012/06/29/%E5%A6%82%E4%BD%95%E... 阅读全文
posted @ 2020-09-06 00:23 EvanMeetTheWorld 阅读(17) 评论(0) 推荐(0)
如何设计让用户满意的IOS应用？
摘要：reference: https://cdc.tencent.com/2012/06/29/%E5%A6%82%E4%BD%95%E... 阅读全文
posted @ 2020-09-06 00:23 EvanMeetTheWorld 阅读(21) 评论(0) 推荐(0)
Swift4 controller bar related
摘要：the following two override variable are used in navigation control... 阅读全文
posted @ 2020-09-03 03:51 EvanMeetTheWorld 阅读(8) 评论(0) 推荐(0)
Swift4 controller bar related
摘要：the following two override variable are used in navigation control... 阅读全文
posted @ 2020-09-03 03:51 EvanMeetTheWorld 阅读(15) 评论(0) 推荐(0)
Swift4普通属性 计算属性 监视器属性 get willSet didSet 关键字
摘要：refer： import Foundationclass People : NSObject{ //普通属性 var ... 阅读全文
posted @ 2020-09-02 21:49 EvanMeetTheWorld 阅读(28) 评论(0) 推荐(0)
Swift4普通属性 计算属性 监视器属性 get willSet didSet 关键字
摘要：refer： import Foundationclass People : NSObject{ //普通属性 var ... 阅读全文
posted @ 2020-09-02 21:49 EvanMeetTheWorld 阅读(16) 评论(0) 推荐(0)