The time limit is 1 sec and my program works for 3000 for about 0.5 seconds.Why I got TL?
Here's my solution:

[code deleted]

Edited by moderator 02.02.2020 19:25

your program works endlessly when n is 1;
in other cases your program is right
and also in case when n is 2 your program outputs ' symbol
hope it helps!!!

Edited by author 08.03.2012 13:36

Edited by author 08.03.2012 13:37