2014 年 4月 20 日随笔档案 - ERKE

2014年4月20日

摘要： GCD XORGiven an integer N, nd how many pairs (A; B) are there such that: gcd(A; B) = A xor B where1 B A N.Here gcd(A; B) means the greatest com... 阅读全文

posted @ 2014-04-20 23:13 ERKE 阅读(396) 评论(0) 推荐(0) 编辑

Paint the Grid Again ZOJ - 3780 拓扑

摘要： Paint the Grid AgainTime Limit:2000MSMemory Limit:65536KB64bit IO Format:%lld & %llu[Submit] [Go Back] [Status]DescriptionLeo has a grid withN×Ncells.... 阅读全文

posted @ 2014-04-20 13:13 ERKE 阅读(234) 评论(0) 推荐(0) 编辑

Paint the Grid Reloaded ZOJ - 3781 图论变形

摘要： Paint the Grid ReloadedTime Limit:2000MSMemory Limit:65536KB64bit IO Format:%lld & %llu[Submit] [Go Back] [Status]DescriptionLeo has a grid withNrows ... 阅读全文

posted @ 2014-04-20 10:27 ERKE 阅读(465) 评论(0) 推荐(0) 编辑