C. Exponential notation 题目连接： http://www.codeforces.com/contest/691/problem/C Description You are given a posi…

B. Chloe and the sequence 题目链接 http://codeforces.com/contest/743/problem/B 题面 Chloe, the same as Vladik, is a …

E. Clockwork Bomb 题目连接： http://www.codeforces.com/contest/650/problem/E Description My name is James diGriz, I…

E. Mike and Geometry Problem 题目连接： http://www.codeforces.com/contest/689/problem/E Description Mike wants to p…

D. Three-dimensional Turtle Super Computer 题目连接： http://www.codeforces.com/contest/638/problem/D Description A…

A. Tennis Tournament 题目连接： http://www.codeforces.com/contest/628/problem/A Description A tennis tournament wit…

D. Vanya and Treasure 题目连接： http://www.codeforces.com/contest/677/problem/D Description Vanya is in the palace…

B. Different is Good 题目连接： http://www.codeforces.com/contest/672/problem/B Description A wise man told Kerem &…

E. Bear and Forgotten Tree 2 题目连接： http://www.codeforces.com/contest/653/problem/E Description A tree is a con…

B. Young Photographer 题目连接： http://codeforces.com/contest/14/problem/B Description Among other things, Bob is …

A. Neverending competitions 题目连接： http://codeforces.com/contest/765/problem/A Description There are literally …

B. DZY Loves FFT 题目连接： http://codeforces.com/contest/444/problem/B Description DZY loves Fast Fourier Transfor…