Count number of words in string
'hi', answer is 1
'hi hi', answer is 2
'I enjoy cody', answer is 3
Most nonzero elements in row
Matrix to column conversion
Union of two set decreasing order
Find out base of following arithmetic operation
Find Excess 3 code of given decimal number.
Add one raw in given matrix as shown in example
calculate interest saved because of reduction of interest rate
Find out Binomial coefficient
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