It's very sad that there is no matlab function "npermsk".
Not work for R is long, and k is small.
For example, R = 1:100, k = 2.
@li haitao, the max digital is 9. If length of R great than 10, it is another problem. I think you can submit a problem like this but larger R.
@ Binbin Qi, You're right.
Remove NaN ?
Generate N equally spaced intervals between -L and L
Right Triangle Side Lengths (Inspired by Project Euler Problem 39)
Is it an Armstrong number?
Converting binary to decimals
That's some divisor you've got there...
Make one vector from two others
Two fractions, one sum
Some Assembly Required
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