Combinations
>>are much easier to get along with details don't matter so much. To a combination, red/yellow/green looks the same as green/yellow/red.
Permutations
>>are for lists (where order matters) and combinations are for groups (where order doesn't matter). In other words: A permutation is an ordered combination.
Explanation:
>>When the order doesn't matter, it is a Combination. When the order does matter it is a Permutation.
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