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Problem Description Given two strings a and b we define a*b to be their concatenation. For example, if a = "abc" and b = "def" then a*b = "abcdef". If we think of concatenation as multiplication, exp

Jungle Roads Problem Description The Head Elder of the tropical island of Lagrishan has a problem. A burst of foreign aid money was spent on extra roads between villages some years ago. But th

Avoid The Lakes Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 6960   Accepted: 3694 Description Farmer John's farm was flooded in the most recent storm, a

Common Subsequence Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 43196   Accepted: 17516 Description A subsequence of a given sequence is the given sequence