Please wait until Monday 21 November to post solutions.
From the Rank u"n page in the Vocabulary:
The verb u"n applies u to each cell as specified by the rank n . The
full form of the rank used is 3$&.|.n . For example, if n=:2 , the three
ranks are 2 2 2 , and if n=: 2 3, they are 3 2 3 .
The challenge: rewrite verb
ranks =: 3 : '3$&.|.y'
using a train with no conjunctions.
ranks 2
2 2 2
ranks 2 3
3 2 3
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