I am trying to solve this problem.....
http://mirror.codeforces.com/problemset/problem/281/B
but i am continuously getting WA in a case.i check that case in pc's compiler it gives me correct output.i have copied my code and check it in custom test(codeforce compiler) and it gives different result. i can't found my mistake and can't found the solution :( here is my code http://mirror.codeforces.com/contest/281/submission/17562664
Plz anyone help me...
Hello, It's not the compiler's fault.
The problem lies with floating point division inaccuracies.
For example, your code will store
as 0.16666666666666652 while it'll store 
as 0.16666666666666674
And yeah, it's not that hard a bug to catch, could have been done with one
cerrorcoutstatement. So may be next time atleast try to debug before posting such misleadingly titled blog