go with some examples man.
example answers: 1 or 9999 or 5000.
See other Hack challenges - 205, 207, 709.
Select every other element of a vector
More luck than brains
Reindex a vector
Returning a "greater than" vector
Gene Sequence Contest: Retro
Sudoku Solver - Standard 9x9
GJam 2012 Qualifier: Tongues
Unique - Very Very Large Numbers
GJam 2016 Rd1A: Rank and File (small)
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