Question

Consider the following code: for i= m to n increment 2 { print "Hello!" } Assuming m < n and (m,n) are either both even or both odd, How many times will Hello be printed?

Answer 1

Hey There!! 

The word Hello! will be printed $\boxed{\left(\frac{n-m}{2}\right)+1}$ number of times.   

Here's an example: Take m=3, n=9
Then i will take the following values: i=3,5,7,9 
Clearly there are 4 values, and $4=\frac{9-3}{2}+1$

You can also check it with other possible values.

Hope it helps,
Purva
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