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A comment on I cheated on my Microsoft interview (2019). Parent comment

Re:I cheated on my Microsoft interview (2019) by jhot on Sunday June 05, 2022 @05:53AM (#31629480)
The length is n+1 and contains all ints 1 through n, so there can only be a single duplicate.
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Re:I cheated on my Microsoft interview (2019) by williamkuszmaul on Sunday June 05, 2022 @11:49AM (#31632049)
But does the question ever say "all"...?
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