Category: codeforces
The problem is from Codeforces: The number of trailing zeros can be computed by checking the number of divisors (2 and 5) for all numbers. The minimal divisor number …
The problem is from codeforces: http://codeforces.com/problemset/problem/347/B It has been a while and I just pick another easy math problem to update the blog. The problem states that only maximum 1 …
The problem is from codeforces: http://codeforces.com/problemset/problem/298/B The note given in the problem description pretty much explains the problem clearly. In every moment, the ship can choose to stay put or …
The problem is from codeforces: http://www.codeforces.com/problemset/problem/278/B The problem asks for the first sequence (sorted in alphabetic order) of character(s) that is not a substring of the given list of strings.The …
The problem is from codeforces: http://www.codeforces.com/problemset/problem/278/A The problem can be simplified as the following: in a double-direction link, given two nodes, compute the shortest distance between them. There are only …