# LeetCode 0377 - Combination Sum IV

# Combination Sum IV

## Desicription

Given an integer array with all positive numbers and no duplicates, find the number of possible combinations that add up to a positive integer target.

**Example:**

1 | nums = [1, 2, 3] |

**Follow up:**

What if negative numbers are allowed in the given array?

How does it change the problem?

What limitation we need to add to the question to allow negative numbers?

## Solution

1 | class Solution { |