160347701 Could anybody please tell me why this code is working for below testcase :

1
100000
first String :- [aaaaaaa....till 50000 places] + [bbbbbbbb.... till 100000 places]
second String :- [bbbbbb....till 50000 places] + [aaaaaaa....till 100000 places]

According to the code and the testcase given ,the time complexity should be (N + (50000^2)) which should give TLE then why it is not giving TLE. Would anyone like to help me out.