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?
pressure to dB?
Back to basics 25 - Valid variable names
Replace Vector Elements
Given a number find two variables
Soccer - TOTO
Are all the three given point in the same line?
mathematics , probability problem
Convert from Base 10 to base 5
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