原创 [LeetCode] Single Number
Given an array of integers, every element appears twice except for one. Find that single one. Could you implement it
2020-02-22 12:24:06
原创 [LeetCode] Word Ladder
Given two words (beginWord and endWord), and a dictionary, find the length of shortest transformation sequence from b
2020-02-22 12:24:06
原创 [LeetCode] Populating Next Right Pointers in Each Node
Given a binary tree struct TreeLinkNode { TreeLinkNode *left; TreeLinkNode *right; TreeLinkNode
2020-02-22 12:24:06
原创 GNUPLOT linespoints and save as pdf
set terminal postscript eps enhanced color font ',30' set yrange [0:1] set logscale x set xrange [200:100000] set grid
2018-08-24 10:11:24
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原创 TOP用法
1. 查詢某個進程iperf的cpu使用率，每隔1s輸出一次，一共輸出10次 top -b -n10 -d 1 -p `pgrep iperf`>> file.txt
2018-08-24 10:11:24
2
原创 [LeetCode] Contains Duplicate
Given an array of integers, find if the array contains any duplicates. Your function should return true if any value ap
2018-08-24 10:11:24
原创 [LeetCode] Distinct Subsequences
Given a string S and a string T, count the number of distinct subsequences of T in S. A subsequence of a string is a
2018-08-24 10:11:24
2
原创 [LeetCode]Implement Trie (Prefix Tree)
class TrieNode { public: // Initialize your data structure here. TrieNode() { val='0';
2018-08-24 10:11:24
2
原创 [LeetCode] HouseRobber
You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed,
2018-08-24 10:11:24
3
原创 [python] Lift is short, I need python!
Example 1: Reverse words in a String Given an input string, reverse the string word by word. For example, Given s =
2018-08-24 10:11:24
原创 Matlab 命令行設置顏色和legend，保存圖像，設置title。。。
i=10; goodput=(i-1)*5+2; rtt=goodput+1; lossrate=rtt+1; qpm=lossrate+1; total_request=qpm+1; figure h6=plot(asn12322_sm
2018-08-24 10:11:24
7
原创 寫在受洗之前：我爲什麼成爲基督徒
暑假在灣區實習，參加歸正教會的聚會，有時也會訝異：我這樣一個仍然被花花世界羈絆的大俗人怎麼開始想要親近主，嚮往過敬虔的生活了。下週要受洗了，渴望這一天好久，在受洗之前想來梳理一下這半年的“心路”，爲主作見證。對很驚訝我信主的
2018-08-24 10:11:24
原创 GNUPLOT bar plot 繪製，並用條紋填充
set terminal postscript font "Helvetica, 16" set boxwidth 0.9 absolute set style fill pattern 2 border lt -1 set style
2018-08-24 10:11:23
8
原创 [LeetCode] Merge K sorted lists
Solution 1: 1. use merge2list(), and merge all lists one by one. Time complexity is O(n*longest list length) 2. For eac
2018-08-24 10:11:23
原创 將文件夾下所有pdf變成黑白的腳本
#!/bin/bash for file in ./*.pdf do echo "$file" gs -o black+white.pdf -sDEVICE=pdfwrite -dPDFSETTINGS=/prepress -sC
2018-08-24 10:11:23
2