The problem says the input is a positive integer but the first test inputs 0. In my code that caused r = 0/0 error. Please change the wording to "input is non-negative".
Swap the first and last columns
letter yes yes & letter no no
Do you like your boss?
Find my daddy long leg (No 's')
Find the Oldest Person in a Room
How many digits are there?
Volume and area of a sphere
Can I make a right triangle ?
Create matrix with Gray code
Make a vector of prime numbers
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