#202Medium#15 in Snap's list· asked at 25 companies
Combination Sum
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What we know
Example 1
Input: candidates = [2,3,6,7], target = 7 Output: [[2,2,3],[7]]
Example 2
Input: candidates = [2,3,5], target = 8 Output: [[2,2,2,2],[2,3,3],[3,5]]
Example 3
Input: candidates = [2], target = 1 Output: []
Constraints
- •
1 <= candidates.length <= 30 - •
2 <= candidates[i] <= 40 - •
All elements of
candidatesare distinct. - •
1 <= target <= 40