This app serves as a reference guide to space and time complexities of Big O, which includes: A list of common data structures with average and worse case scenarios. Some data structures include hash tables, binary search tree, linked list, etc. A list of popular sorting algorithms with best, average and worse case scenarios, such as radix sort, heapsort, quicksort, etc.
It's safe to download the app. Envision Lightning is the official developer of Big(O) which can be found in the Educational category. Over 1K users set up the tool and the most recent update was launched on Feb 18, 2017.
This application was rated 4.3 on Google Play. Take the opportunity to get the installer of Big(O) 1.01 for free and check out users' reviews on Droid Informer. The app is designed for Android 4.1 and higher.