顏忠筆記本

C# Serial Port 使用方式

將Excel的分頁另存成獨立excel檔

Merge two sorted linked lists and return it as a new sorted list. 
The new list should be made by splicing together the nodes of the first two lists.

         * Given a string s containing just the characters '(', ')', '{', '}', '[', ']', determine if the input string is valid.
         * An input string is valid if:
         * 1. Open brackets must be closed by the same type of brackets.
         * 2. Open brackets must be closed in the correct order.

Given an array nums of n integers, are there elements a,b,c in nums such that a+b+c = 0? 
Find all unique triplets in the array which gives the sum of zero.

Note : 過不了 TimeLimit 還需要修改

Write a function to find the longest common prefix string amomgst an array of strings.
If there is no common prefix, return an empty string "".

Roman numerals are represented by seven different symbols: I, V, X, L, C, D, M.

Roman numerals are represented by seven different symbols: I, V, X, L, C, D, M

Detemine whether an integer is palindrome. An integer is a palindrome when it reads the same backward as forward.

Detemine whether an integer is palindrome. An integer is a palindrome when it reads the same backward as forward.

Implement atoi which converts a string to integer
 

Given a 32-bit signed integer, reverse digits of an integer

Given a string s, find the longest palindromic substring in s, you may assume that the maximun length of s is 1000.

Given two sorted arrays nums1 and nums2 of size m and n respectively, 
return the median of the two sorted arrays.
 

Given a string s, find the length of the longest substring without repeating characters.

使用C#開啟含有巨集的excel檔後,執行巨集

使用C#開excel檔後寫資料再另存新檔

使用C#開啟一個excel檔後寫資料

取消datagridview自動排序功能

如何取得dll檔的版本號