// A positive (strictly greater than zero) integer is called round if it is of the form d00...0. In other words, a positive integer is round if // all its digits except the leftmost (most significant) ...

Given a nested list of integers, return the sum of all integers in the list weighted by their depth. Each element is either an integer, or a list -- whose elements may also be integers or other lists.

Given an array of integers named nums, we need to compute a new array called runningSum. Each element runningSum[i] should be the sum of all elements from the start of the original array nums up to ...

Day 5 of learning JAVA : >Sum of subarrays -Brute force : log (n^3), triple looping -Prefix array : Creating an additional prefix array, better time complexity but longer code -Kadane's algo : Single ...