Takefumi Yamamura's blog

This blog is for my memorandum about programming and English.

Happy Coding

This blog is for my memorandum

Entries from 2017-02-05 to 1 day

Minimal Tree

problem Given a sorted(increasing order) array with unique integer elements, write an algorithm to create a binary search tree with minimal height. How to solve This minimal tree means creating height balanced tree. Firstly, we want the ro…

Group Anagrams

problem Write a method to sort an array of strings so that all the anagrams are next to each other. how to solve I use hash table. once we have grouped all the words into these lists by anagram. we can then put them back into the array. co…