Here are my solutions for the first three questions for which i got AC but suddenly today(20 march 2016) its not showing on my account’s submissions…even after the addition of new test cases i couldn’t find anything wrong in it…please tell me why its not showing…

Probably you are caught doing plagiarism. That’s why your solutions aren’t shown. You should have got a mail regarding this from codechef, check for that.

i was using 2 ID’S and submitted the same answer from both…is this the reason???

Yes, that is the reason. Besides, you are not supposed to have two accounts. Read the Rules and Regulations at the bottom of the page. The seventh point clearly mentions it.

It’s best if you notify to deactivate your old account or else both might get permanently terminated…