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'
Remove NaN ?
Generate a vector like 1,2,2,3,3,3,4,4,4,4
Do Fast Fourier Transformation
sum of first 'n' terms
Please check the last row
Friday or not
Let's make puddings !
The proportion of NaN in the data
Please check if calorie intake is less than 300 kcal.
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