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Combination Sum

Medium

00:00

0 users online

Given candidates and target, find all unique combinations where candidates sum to target.

Sample Input:

[2,3,6,7], 7

Sample Output:

[[2,2,3],[7]]

Hints

Hint 1

Use backtracking to explore all combinations

Hint 2

Sort candidates to optimize and avoid duplicates

Hint 3

Include each candidate multiple times

Code Editor

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