How the hashmap works internally and some more questions on it.
Binary Tree is BTS or not.
Stock buy and sell multiple times. Calculate the profit.
Given an array with the following conditions:
Every element is repeated twice
One is element is present only once
repeating elements will be clubbed together
Example - u u i i k k a a b b c c d d e e f h h
Find the non-repeating element. Answer for example - f
Hint: Binary Search
List of ratio given and need give the answer to m queries
Example :Given list [ a:b = 3, c:d = 4, g:h = 10, b:c = 8 ]
Query 1: What will be the a:d
