Can anyone tell me how to find output

Question

I am just a beginner in c

Answer 1

Just run the code in playground and see what output it yields.
Other approach is to Run code manually in your mind and generating the output.

Answer 2

In that case just go for formar approach of running code manually and finding out what will happen at each step and display the final output

Answer 3

I mean in test

Answer 4

Or in challenge