Problem with test 4
I am not able to submit a solution. I get error "There was an issue submitting your solution. Remove inappropriate content. For guidelines, see About Cody"
Return the first and last character of a string
Rotate a Matrix by 90 degrees
Add more zeros
Dimensions of a rectangle
Disjunctive Normal Form
Conjunctive Normal Form
Method of Common Differences part-1
Number of cyles and fixed points in a permutation
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