摘要： Corn Fields Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 13765 Accepted: 7232 Description Farmer John has purchased a lush new rectangul 阅读全文

摘要： Farmer John wants to repair a small length of the fence around the pasture. He measures the fence and finds that he needs N (1 ≤ N ≤ 20,000) planks of 阅读全文