王旻宇

原题链接 ：http://codeforces.com/contest/425/problem/C                                                            Sereja and Two Sequences Sereja has two sequences a1, a2, ..., an andb1, b2, ..., bm,

原题链接

URL：http://codeforces.com/contest/425/problem/A                                                                  A. Sereja and Swaps                                time limit per test          

URL:  http://codeforces.com/contest/430/problem/B Iahub is training for the IOI. What is a better way to train than playing a Zuma-like game? There are n balls put in a row. Each ball is c