Sum the same indexed (unique) rows. Examine the test suite.
Related Challenge - Problem 2172. Delete the rows in the middle
Least common multiple of many numbers
Reverse the Words (not letters) of a String
Is the Point in a Circle?
Sum the Digits of a Number
Create matrix of replicated elements
Get Next Combination
Bridge and Torch Problem - Minimum time
Repeat string n times
Recaman Sequence - III
Determine if input is a valid AHP evaluation matrix
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