Yesterday, I was trying a problem. I got two different verdict on the apporx same code.
Solution 1 (Accepted) : https://codeforces.com/contest/271/submission/115150455
Solution 2 (Runtime Error) : https://codeforces.com/contest/271/submission/115150580
See line 83 of solution 1. There i have assigned pre to some value which is out of bound. But still the code was accepted, it should give Runtime Error as given in the solution 2. In solution 2, I changed long long to int. I submitted another code in which i removed pre assignment and then it was accepted.
Solution 3 : https://codeforces.com/contest/271/submission/115150618
Someone please tell why didn't I get RTE in my solution 1 as pre is clearly out of bound?
Thanks in advance!