Peinan Weng

永不放弃 直到做对为止

Web聊天室开发 - 多媒体呈现与文件下载

待补充

Posted by Peinan on March 16, 2020

MySQL Character Problem

今天使用MySQL时发现无法使用jdbc插入中文等UTF8字符，尝试了修改MySQL设置中的编码选项，但仍无法显示。 解决方法：MySQL不仅本身有默认编码格式，而且每个database，每张table，每个字段，都有默认编码格式，虽然修改了全局的默认编码，但是由于之前的数据仍然使用的是非UTF格式，因此仍然不能显示。手动设置全部数据格式为UTF8MB4后可以正确显示UTF8字符。 另外...

Posted by Peinan on March 7, 2020

split Different Behavior in Java and C#

In Java In C#

Posted by Peinan on March 6, 2020

Json Helper

A slight JSON object tool for C++, Java and C#. Github Repo - C++ Github Repo - Java Github Repo - C#

Posted by Peinan on February 22, 2020

LeetCode - Sieve of Eratosthenes

An algorithm to find all prime numbers from 1 to n, with O(n) time complexity. Brute force solution costs O(sqrt(n)) for each number from 1 to n. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 int countP...

Posted by Peinan on December 2, 2019

LeetCode - 1000 MARK - A Small Step

Posted by Peinan on November 26, 2019

LeetCode - Fisher-Yates Shuffle Algorithm - N/A

Posted by Peinan on November 22, 2019

554 HW8

Visualization program of homework 8, card game. Android available. Download Link

Posted by Peinan on November 20, 2019

LeetCode - 900 MARK

Posted by Peinan on November 19, 2019

LeetCode - DFS or BFS - N/A

Posted by Peinan on November 18, 2019