Can anyone explain the defect in the given program.thanks in advance.

Question

code is written in c.
https://code.sololearn.com/cx7jKDrNZxzv/?ref=app

Answer 1

Fixed code: https://code.sololearn.com/cba3E7zPzEyy/#c

Problems:
1. There were some invisible characters (this happens when the code is pasted from another source)
2. Use if(flag==0) instead of if(flag=0)
3. There were mismatched curly braces
4. i, j should be declared before starting the loops