Can someone post the solution or references for this question. https://www.codechef.com/FEB17/problems/KBIGNUMB
This is a very nice video editorial - https://www.youtube.com/watch?v=VyPysOdolfk&feature=youtu.be
That is why this problem was removed from the contest I guess
Exactly! There was another question in FEB17 which was framed from codeforces.com website had been removed
@admin Practice version for this problem is not available. Can you please add the practice version for this problem.