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Array Assignment (Posted on 2014-05-20) Difficulty: 3 of 5
A 4x4 array with entries from the set {0,1,2,3} is such that:
  • The sum of each of the four rows is divisible by 4, and:
  • The sum of each of the four columns is divisible by 4
Determine the total number of arrays having the above property.

Notes:

(i) Two or more cells of a given row or column may or may not contain the same number.
(ii) Disregard rotations or reflections.

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
SolutionTaking into consideration (ii)Charlie2014-05-20 15:46:25
Some ThoughtsIgnoring (ii)Jer2014-05-20 13:36:50
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