摘要：
Given an array of integers where 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and others appear once. Find all the elements of [1, n] 阅读全文
摘要：
先贴个代码上来，晚点补全教程 编译环境：ubuntu16.04 编译命令(先编译执行服务端)：g++ serv.cpp -o serv.out ./serv.out 客户端:g++ client.cpp -o serv.cpp ./client.out 可以实现三种命令：get <filename> 阅读全文