You are given a positive integer array nums. The element sum is the sum of all the elements in nums. The digit sum is the sum of all the digits (not necessarily distinct) that appear in nums. Return ...

Given an array of integers, find the sum of its elements. For example, if the array ar = [1,2,3] , 1 + 2 + 3 = 6 Input Format: The first line contains an integer,n , denoting the size of the array.

The subset-sum problem is one of the most frequently occurring NP (nondeterministic, polynomial-time)-complete) problems. It asks whether a subset of numbers in a set of positive integers adds up ...