摘要：
D. Two Paths 题目连接： http://codeforces.com/contest/14/problem/D Description As you know, Bob's brother lives in Flatland. In Flatland there are n cities 阅读全文
摘要：
C. Four Segments 题目连接： http://codeforces.com/contest/14/problem/C Description Several months later Alex finally got his brother Bob's creation by post 阅读全文
摘要：
B. Young Photographer 题目连接： http://codeforces.com/contest/14/problem/B Description Among other things, Bob is keen on photography. Especially he likes 阅读全文
摘要：
C. Vasya and Basketball 题目连接： http://codeforces.com/contest/493/problem/C Description Vasya follows a basketball game and marks the distances from whi 阅读全文
摘要：
B. Vasya and Wrestling 题目连接： http://codeforces.com/contest/493/problem/B Description Vasya has become interested in wrestling. In wrestling wrestlers 阅读全文