A. Bear and Five Cards 题目连接： http://www.codeforces.com/contest/680/problem/A Description A little bear Limak p…

D. Winter is here 题目连接： http://codeforces.com/contest/839/problem/D Description Winter is here at the North an…

B. Alyona and a tree 题目连接： http://codeforces.com/contest/739/problem/B Description Alyona has a tree with n ve…

G. Fence Divercity 题目连接： http://www.codeforces.com/contest/659/problem/G Description Long ago, Vasily built a …

D. Directed Roads 题目连接： http://www.codeforces.com/contest/711/problem/D Description ZS the Coder and Chris the…

A. Fox and Box Accumulation 题目连接： http://codeforces.com/contest/388/problem/A Description Fox Ciel has n boxes…

C. Simple Strings 题目连接： http://www.codeforces.com/contest/665/problem/C Description zscoder loves simple strin…

A. Hongcow Learns the Cyclic Shift 题目连接： http://codeforces.com/contest/745/problem/A Description Hongcow is le…

B. Spreadsheets 题目连接： http://www.codeforces.com/contest/1/problem/B Description In the popular spreadsheets sy…

E. Startup Funding 题目连接： http://codeforces.com/contest/633/problem/E Description An e-commerce startup pitches…

E. One-Way Reform 题目连接： http://codeforces.com/contest/723/problem/E Description There are n cities and m two-w…

B. Bear and Compressing 题目连接： http://www.codeforces.com/contest/653/problem/B Description Limak is a little po…