Tag: online judge
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 …
PIBAS is simple, it only has 2 possible operations: string assignment (e.g. A=’abc’) and printing (e.g. ?A). It supports only one function which is similar to the substr in Javascript …
The problem is from codeforces: http://codeforces.com/contest/265/problem/A This is a pure simulation problem, no difficulty at all. If the current instruction matches the colour on the current stone, move one position …
The problem is from codeforces: http://codeforces.com/problemset/problem/245/A A really simple math problem, can be solved within a few lines of Python code: #!/usr/bin/env python ax = asum = 0 bx = …