HDU4126Genghis Khan the Conqueror(最小產生樹+並查集),並查集Genghis Khan the ConquerorTime Limit: 10000/5000 MS (Java/Others) Memory Limit: 327680/327680 K (Java/Others)Total Submission(s): 1687 Accepted
Palindrome Number,palindromenumber Determine whether an integer is a palindrome. Do this without extra space.沒明白這句話“Do this without extra space.”是什麼意思,A完以後看了別人的討論也都用到了局部變數。class Solution {public: bool isPalindrome(int x) { if (x < 0)
Implement strStr(),implementstrstr Implement strStr()Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.實現判斷子串的函數,最經典的是KMP演算法,但是這個演算法實現起來比較複雜,但是確即時間複雜度方面最優的。下面實現了一個簡單的演算法,也就是需要判斷(n-m)*m次,
LeetCode Rotate Array,leetcoderotate Rotate Array Total Accepted: 12759 Total Submissions: 73112 My Submissions Question Solution Rotate an array of n elements to the right by k steps.For example, with n = 7 and k = 3, the array [1,2,3,4,5,6,
vim note(5),vimnote.vimrc 的設定$HOME/.vimrc 的普通設定,如下。set nocompatible "" not compatible with VI"" Encodings and fontsset encoding=utf-8set fileencoding=utf-8set fileencodings=ucs-bom,gb18030,gbk,gb2312,cp936set
LeetCode Number of 1 Bits,leetcodebits Number of 1 Bits Total Accepted: 10567 Total Submissions: 28552 My Submissions Question Solution Write a function that takes an unsigned integer and returns the number of ’1’ bits it has (also known as
vim 學習筆記系列(前言),vim學習筆記今天上午的時候,看到大神在用vim編程,畫面直觀,速度很快,操作只需要用命令符就可以實施。所以可以推斷vim的命令符是複雜的,那麼學習過程中記憶會很漫長,很痛苦,但是如果記住了這些命令符,並可以熟練的使用,那麼便可以放棄滑鼠的使用,從而提高了效率。一般人一直是用的比較直接的Eclipse
C# ignoring letter case for if statement(Stackoverflow),Question:I have this if statement:if (input == 'day') Console.Write({0}, dayData);When the user types 'day' it should be so that the console writes the data in that array. It works fine but
Why is processing a sorted array faster than an unsorted array(Stackoverflow),stackoverflowWhat is Branch Prediction?Consider a railroad junction:Image by Mecanismo, via Wikimedia Commons. Used under the CC-By-SA 3.0 license.Now for the sake of