C. Vladik and fractions 题目链接 http://codeforces.com/contest/743/problem/C 题面 Vladik and Chloe decided to determ…

Codeforces Beta Round #62 A Irrational problem 题意 f(x) = x mod p1 mod p2 mod p3 mod p4 问你[a,b]中有多少个数满足f(x)=x 题…

D. Least Cost Bracket Sequence 题目连接： http://www.codeforces.com/contest/3/problem/D Description This is yet ano…

E. Table Compression 题目连接： http://www.codeforces.com/contest/651/problem/E Description Little Petya is now fon…

C. Package Delivery 题目连接： http://www.codeforces.com/contest/627/problem/C Description Johnny drives a truck an…

A. Memory and Crow 题目连接： http://codeforces.com/contest/712/problem/A Description There are n integers b1, b2, …

D. Robot Rapping Results Report 题目连接： http://www.codeforces.com/contest/655/problem/D Description While Farmer…

E. ZS and The Birthday Paradox 题目连接： http://www.codeforces.com/contest/711/problem/E Description ZS the Coder …

B. World Tour 题目连接： http://www.codeforces.com/contest/666/problem/B Description A famous sculptor Cicasso goes…

Problem H. Hometask 题目连接： http://codeforces.com/gym/100714 Description Kolya is still trying to pass a test on…

C. Little Artem and Matrix 题目连接： http://www.codeforces.com/contest/669/problem/C Description Little Artem like…

C. Report 题目连接： http://www.codeforces.com/contest/631/problem/C Description Each month Blake gets the report c…