This is a slightly different, and easier, version of these problems:
Please note that the angle between the hour and minute hands also depends on the second hand. You assumed the zero-second in all test cases, which makes your problem a special case of an existing problem: http://www.mathworks.com/matlabcentral/cody/problems/392-clock-hand-angle-1
Summing Digits within Text
Make a run-length companion vector
Calculate the Number of Sign Changes in a Row Vector (No Element Is Zero)
convert matrix to single column
Sum of series II
Look Up Mapping
Replace Nonzero Numbers with 1
Repeat The Components of Matrix
What is Sum Of all elements of Matrix
Sort the vector with the given index
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