Given an array of citations (each citation is a non-negative integer) of a researcher, write a function to compute the researcher’s h-index.

Given an array of citations sorted in ascending order (each citation is a non-negative integer) of a researcher, write a function to compute the researcher’s h-...

Given two arrays, write a function to compute their intersection.

Given an unsorted array return whether an increasing subsequence of length 3 exists or not in the array.

Given a non negative integer number num. For every numbers i in the range 0 ≤ i ≤ num calculate the number of 1’s in their binary representation and return them...

Given a positive integer num, write a function which returns True if num is a perfect square else False.

Given an integer (signed 32 bits), write a function to check whether it is a power of 4.

You are given coins of different denominations and a total amount of money amount. Write a function to compute the fewest number of coins that you need to make ...

Given an integer, write a function to determine if it is a power of three.

Given an array of integers A and let n to be its length.