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Let’s say I have a number like 21 and I want to split it up so that I get the numbers 2 and 1.
To get 1, I could do 1 mod 10. So basically, the last digit can be found out by using mod 10.
To get 2, I could do (21 – (1 mod 10))/10.
The above techniques will work with any 2-digit number.
However, let me add a further constraint, that mod can only be used with powers of 2. Then the above method can’t be used.
What can be done then?
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