Return the number of days in a given month in 2017. If the input is not a valid month number, return -1.
Input: m = 1
Outpu: d = 31
Input: m = 2
Output: d = 28
Input: m = 13
Output: d = -1
You cannot use IF statements
Swap the input arguments
Set the array elements whose value is 13 to 0
Count decimal digits of a number
Matlab Basics II - Intervals
Find the starting index of a consecutive condition
How many unique Pythagorean triples?
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