摘要：ZOJ Problem Set - 1609 EquivalenceTime Limit: 5 Seconds Memory Limit: 32768 KBWhen learning mathamatics, sometimes one may come to an theorem which go 阅读全文

摘要：L3-015. 球队“食物链” 某国的足球联赛中有N支参赛球队，编号从1至N。联赛采用主客场双循环赛制，参赛球队两两之间在双方主场各赛一场。 联赛战罢，结果已经尘埃落定。此时，联赛主席突发奇想，希望从中找出一条包含所有球队的“食物链”，来说明联赛的精彩程度。“食物链”为一个1至N的排列{ T1 T2 阅读全文

摘要：There's an alien whose name is Marjar. It is an universal solder came from planet Highrich a long time ago. Marjar is a strange alien. It needs to gen 阅读全文