Timelimit exceeded for Sudoku Solver

#1

I am getting this error
Link to code-> https://ide.codingblocks.com/s/585974
Error->runguard: warning: timelimit exceeded (wall time): aborting command
runguard: warning: command terminated with signal 15

#2

Logic is correct
there is only one small mistake

these 2 statements are not complete
image
you have to return these also

Correct One
image

Modified Code

#3

I hope I’ve cleared your doubt. I ask you to please rate your experience here
Your feedback is very important. It helps us improve our platform and hence provide you
the learning experience you deserve.

On the off chance, you still have some questions or not find the answers satisfactory, you may reopen
the doubt.