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Square Root Using Binary Search in Java

Square Root Using Binary Search in Java
(Asked in AMAZON, ACCOLITE, FLIPKART, VMWare..etc)

Wave Array in Java

WAVE ARRAY IN JAVA
Given an unsorted array of integers, sort the array into a wave like array. An array ‘arr[0..n-1]’ is sorted in wave form if arr[0] >= arr[1] = arr[3] = …..