问题描述： Given a robot cleaner in a room modeled as a grid. Each cell in the grid can be empty or blo ...

Given an integer array with no duplicates. A max tree building on this array is defined as follow: ...

前言: Java不存在内存泄漏, 但存在过期引用以及资源泄漏. (个人看法, 请大牛指正) 这边对文件句柄泄漏的场景进行下模拟, 并对此做下简单的分析.如下代码为模拟一个服务进程, 忽略了句 ...

问题描述： There are n servers numbered from 0 to n-1 connected by undirected server-to-server connectio ...