increasing entropy of the universe
Posts Tagged “scala”
Sat 18 Dec 2021
You are given a string s and an integer k, a k duplicate removal consists of choosing k adjacent and equal letters from s and removing them, causing the left and the right side of the deleted substring to concatenate together...
Wed 08 Dec 2021
Questions involving the binary tree data structure are very popular in tech interviews, and can be challenging and varied! A binary tree is a data structure consisting of a collection of nodes (starting at a root node), where each node consists of a value (data), together with a directed edges to at most two nodes (the "left child" and "right child"), with the additional conditions that no two edges point to the same node and no edge points to the root. I recently solved an interesting problem on binary tree...
Fri 20 Mar 2020
I was looking to write a scala script to fetch large data from Oracle database. I was earlier using the Alteryx software to fetch data (around 1 million rows) from oracle which took around 7 minutes. Licensed softwares like Alteryx or Informatica, etc are great, but I was looking for a free solution...
Remove-all-adjacent-duplicates-in-string-ii Solution
You are given a string s and an integer k, a k duplicate removal consists of choosing k adjacent and equal letters from s and removing them, causing the left and the right side of the deleted substring to concatenate together...
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Wed 08 Dec 2021
Lowest Common Ancestor of a Binary Tree
Questions involving the binary tree data structure are very popular in tech interviews, and can be challenging and varied! A binary tree is a data structure consisting of a collection of nodes (starting at a root node), where each node consists of a value (data), together with a directed edges to at most two nodes (the "left child" and "right child"), with the additional conditions that no two edges point to the same node and no edge points to the root. I recently solved an interesting problem on binary tree...
Continue reading → leetcode java python javascript scala
Fri 20 Mar 2020
Connecting to Oracle database form Scala using JDBC for large data
Continue reading → jdbc scala oracle database