By writing it down.
Write your input and outputs first on a piece of paper.
then write down each step you need to do on the input to get the desired output (the part you can be very general or can go in detail). This has helped me not only do i understand the flow but also get to know if there are more effective ways or a different logic i can apply.
it may sound time consuming but its much better than just being clueless in the middle of coding, trust me its doesn't take a lot of time too.
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By writing it down.
Write your input and outputs first on a piece of paper.
then write down each step you need to do on the input to get the desired output (the part you can be very general or can go in detail). This has helped me not only do i understand the flow but also get to know if there are more effective ways or a different logic i can apply.
it may sound time consuming but its much better than just being clueless in the middle of coding, trust me its doesn't take a lot of time too.