Hineven's Blog

摘要: Exact cover Time Limit: 15000MS Memory Limit: 131072KB 64bit IO Format: %lld & %llu Description There is an N*M matrix with only 0s a... 阅读全文
posted @ 2016-07-11 11:24 Hineven 阅读(240) 评论(0) 推荐(0) 编辑