Problem 2172. Delete the rows in the middle
30.0% Correct | 70.0% Incorrect
Last Solution submitted on Oct 29, 2022
Jon on 25 Mar 2014
The description of this problem is not very clear. It's really asking for the first and last row for each unique value in the first column.
rifat on 11 Jun 2014
"However there will be more than one row index and that makes this question challenging." - that really explains nothing to me
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