There’s no better way to celebrate the season than by adding homemade decorations to your home. These personalized touches not only bring a festive charm to your living space but also offer the joy of ...

This is a hybrid app using Apache Cordova. This app is published on play store. Check it out from here. Note: This project is not organised and it is very hard understand the project structure. I'll ...

Picking a set of the best electric guitar strings should be easy, but with so wide a variety out there, it can be difficult to settle on your perfect match. As one of the crucial elements of your ...

实现聚合函数 max/min/count/avg/sum。 思路：使用一个hashmap来保存key（group by的tuple, 没有group by则使用一个默认的key）到value ...