DIY: Combination Sum
Explore how to implement a solution for the combination sum problem where you find unique combinations of numbers that add up to a target. Learn to use backtracking techniques, understand problem constraints, and handle edge cases. This lesson helps you build problem-solving skills useful for coding interviews, especially for questions that involve recursion and combination generation.
We'll cover the following...
Problem statement
We are given a list of distinct integers named contenders. Our goal is to determine all possible ways to pick any or all of these integers such that they add to the value target. The same number may be picked for addition an unlimited number of times. Two arrangements of numbers that add to target are unique if they differ by at least one number. If two arrangements use the same set of numbers, they are still considered ...