Do rounding nearest integer.
Example: -8.8, answer -9
+8.1 answer 8
+8.50 answer 9
Rotate a Matrix by 90 degrees
Implement simple rotation cypher
Return 'on' or 'off'
Say something funny
Given a 4x4 matrix, swap the two middle columns
Find the mode of the given input
Try and Catch Simple Example
Find Excess 3 code of given decimal number.
Convert decimal to hex as shown in test cases
Find out sum of all elements of given Matrix
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