2014年3月17日
TOJ 1690 Cow Sorting (置换群)
摘要： DescriptionFarmer John's N (1 ≤ N ≤ 10,000) cows are lined up to be milked in the evening. Each cow has a unique "grumpiness" level in the range 1...100,000. Since grumpy cows are more likely to damage FJ's milking equipment, FJ would like to reorder the cows in line so they are li 阅读全文
posted @ 2014-03-17 16:32 chen2013 阅读(291) 评论(0) 推荐(0)