So this post will be about prefix

So this post will be about prefix

In prefix increment the value is incremented just when it is processed lets take an example to understand
e.g.
A=9, B;
B=++A;
here B will be assigned the value of A after the value of is incremented which is 10. So A will have now value 10.
Another e.g. to understand well
C=99, D;
D=++C;
++D
Now have a go in this. Think of what the answer could be.
Got It.
Here is the solution. In this C is initialized a value 99 while D  is just initialized. In the second line D is assigned the value of C after the increment which will be now 100. and So C will also have value of 100. And on the third line D is incremented so D  will be 101 now.
For decrement it is the same but the value decreases not increases.
Prefix increment/decrement save time also.
Good luck with learning.
Happy learning.