摘要：
Time Limit: 10 Sec Memory Limit: 64 MBSubmit: 2639 Solved: 1243[Submit][Status][Discuss] Description 聪聪研究发现，荒岛野人总是过着群居的生活，但是，并不是整个荒岛上的所有野人都属于同一个部落，野人们 阅读全文
摘要：
题目描述 Farmer John has noticed that his cows often move between nearby fields. Taking this into account, he wants to plant enough grass in each of his f 阅读全文