Please convert the vector to letters by referring to the examples below.
(eg.1) input vec=[34 1 59] >>> output s='A Z'
(eg.2) input vec=[66 1 67 1 68] >>> output s='a b c'
Rotate input square matrix 90 degrees CCW without rot90
Subtract two positive numbers
Maximum value in a matrix
Number of problems
Sum the 'edge' values of a matrix
Friday or not
I hope to lose weight healthily...
The proportion of NaN in the data
The great 82-year-old
The average of the second largest values
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