Problem F. Finance 题目连接： http://codeforces.com/gym/100714 Description The Big Boss Company (BBC) principal is …

D. Iterated Linear Function 题目连接： http://www.codeforces.com/contest/678/problem/D Description Consider a linea…

C. Digital Root 题目连接： http://www.codeforces.com/contest/10/problem/C Description Not long ago Billy came acros…

D. Bicycle Race 题目连接： http://www.codeforces.com/contest/659/problem/D Description Maria participates in a bicy…

E. The Values You Can Make 题目连接： http://www.codeforces.com/contest/688/problem/E Description Pari wants to buy…

D. Two Paths 题目连接： http://codeforces.com/contest/14/problem/D Description As you know, Bob’s brother liv…

B. Recover the String 题目连接： http://www.codeforces.com/contest/708/problem/B Description For each string s cons…

B. Bakery 题目连接： http://www.codeforces.com/contest/707/problem/B Description Masha wants to open her own bakery…

D. Anton and School – 2 题目连接： http://codeforces.com/contest/785/problem/D Description As you probably kn…

A. Broken Clock 题目连接： http://codeforces.com/contest/722/problem/A Description You are given a broken clock. Yo…

A. Dreamoon and Stairs 题目连接： http://www.codeforces.com/contest/476/problem/A Description Dreamoon wants to cli…

B. Chat Order 题目连接： http://www.codeforces.com/contest/637/problem/B Description Polycarp is a big lover of kil…