Fence Obstacle Course Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 2524 Accepted: 910 Description Farmer John has constructed an obstacle course for the cows' enjoyment. The course consists of a sequence of N fences (1 <= N <= 50,0…
Tunnel Warfare Time Limit: 1000MS Memory Limit: 131072K Total Submissions: 7876 Accepted: 3259 Description During the War of Resistance Against Japan, tunnel warfare was carried out extensively in the vast areas of north China Plain. Generally sp…
Count Color Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 42940 Accepted: 13011 Description Chosen Problem Solving and Program design as an optional course, you are required to solve all kinds of problems. Here, we get a new problem.…