There are n different symbols in which m symbols are identical (m<n). How many different arrangement can we make with these symbols?
n different symbols but m symbols are identical ?!?!? What the hell
The description isn't clear.
Could you at least add a non-trivial example?
Is this matrix orthogonal?
Back to basics 26 - Keywords
Is A the inverse of B?
Find number of days
Convert from Base 10 to base 5
Calculate the area of a triangle between three points
Are all the three given point in the same line?
Find nearest prime number less than input number
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