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Grokking the Coding Interview Patterns in C#

Combination Sum

Explore how to solve the Combination Sum problem by applying dynamic programming techniques. Learn to generate all unique combinations of distinct integers that sum to a target, using an unlimited number of chosen numbers. This lesson helps you develop efficient problem-solving skills for coding interviews with a clear, hands-on approach.

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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:

  • 1≤1 \leq
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