Solution: Combination Sum
Explore how to solve the Combination Sum problem efficiently using dynamic programming in C++. Understand how to build solutions by reusing subproblem results, avoid redundant computations, and find all unique combinations of numbers that sum to a target. This lesson guides you through designing, analyzing time and space complexity, and implementing the solution, preparing you for similar coding interview challenges.
Statement
Given an array of distinct integers, nums, and an integer, target, return a list of all unique combinations of nums where the chosen numbers sum up to the target. The combinations may be returned in any order.
An integer from nums may be chosen an unlimited number of times. Two combinations are unique if the
frequency of at least one of the chosen integers is different.
Constraints:
-
nums.length -
nums[i] -
target