原创 calloc=malloc+memset?
功能上calloc=malloc+memset； 從彙編指令來看的話，calloc的指令是malloc+memset的一半左右。 時間上來說，cal
2020-06-16 04:04:51
原创 leetcode 10 Regular Expression Matching & 44 Wildcard Matching
Regular Expression Matching Implement regular expression matching with support for '.' and '*'. '.' Matches any sing
2020-06-16 04:04:51
原创 1.8 找到只含3,5,7因子的第k大的數
1.8 Design an algorithm to find the kth number such that the only prime factors are 3, 5, and 7. 能想到的就是暴力一下了。。。 貌似還有更好的
2020-06-16 04:04:51
原创 linux下的依賴包
在某臺內網服務器上安裝Oprofile，但是提示確實liberty庫，安裝liberty庫，又提示缺少binutils，如此以往。。。 怎麼能一下找到所需要的所有依賴包呢？ debian/ubuntu中查詢某軟件的依賴關係，或者該軟件
2020-06-16 04:04:51
原创 1.7 用加法實現乘除減運算
1. 7 Write a method to implement *, - , / operations. You should use only the + operator. 直接貼答案吧。。 With an understandin
2020-06-16 04:04:51
原创 1.5 計算階乘末尾0的個數
1.5 Write an algorithm which computes the number of trailing zeros in n fa
2020-04-21 09:45:09
原创 leetcode 11 Container With Most Water
Container With Most Water Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinat
2020-02-22 12:26:19
原创 leetcode 9 Palindrome Number
Palindrome Number Determine whether an integer is a palindrome. Do this without extra space. click to show spoiler
2020-02-22 12:26:19
原创 1.6 不用算術符號實現加法
1. 6 Write a function that adds two numbers. You should not use + or any arithmetic operators. 一看就是需要用邏輯運算實現加法。 邏輯運算有一些
2020-02-22 12:26:19
原创 1.9 最高的 身高體重從上到下依此遞增的塔
1.9 A circus is designing a tower routine consisting of people standing at
2020-02-22 12:26:19
原创 1.10 找經過點最多的直線
1.10 Given a two dimensional graph with 6000 points on it, find a line which passes the most number of points. 開始想要不要先
2020-02-22 12:26:19
原创 leetcode 7 Reverse digits of an integer
Reverse digits of an integer. Example1: x = 123, return 321 Example2: x = -123, return -321 class Solution: #
2020-02-22 12:26:19
原创 leetcode 4 Median of Two Sorted Arrays
Median of Two Sorted Arrays There are two sorted arrays A and B of size m and n respectively. Find the median of the t
2020-02-22 12:26:19
原创 leetcode 1 Two Sum
Two Sum Given an array of integers, find two numbers such that they add up to a specific target number. The functio
2020-02-22 12:26:19
原创 leetcode 3 Longest Substring Without Repeating Characters
Longest Substring Without Repeating Characters Given a string, find the length of the longest substring without repeat
2020-02-22 12:26:19