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    OlympiadEasyCombinatorics7–9

    In how many ways can 77 identical stickers be shared among 33 children so that every child gets at least one?

    De quantas maneiras se podem distribuir 77 autocolantes iguais por 33 crianças de modo que cada criança receba pelo menos um?

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    Solution

    Step 1 of 3

    1. 1.Lay the 77 stickers in a row; there are 66 gaps between neighbours.