摘要：Cao Cao made up a big army and was going to invade the whole South China. Yu Zhou was worried about it. He thought the only way to beat Cao Cao is to 阅读全文

摘要：Mario is world-famous plumber. His “burly” figure and amazing jumping ability reminded in our memory. Now the poor princess is in trouble again and Ma 阅读全文

摘要：题目描述 逝者如斯夫，不舍昼夜！ 叶良辰认为，他的寿命是无限长的，而且每天都会进步。 叶良辰的生命的第一天，他有1点能力值。第二天，有2点。第n天，就有n点。也就是S[i]=i 但是调皮的小A使用时光机，告诉他第x天和第y天，就可以任意交换某两天的能力值。即S[x]<-->S[y] 小A玩啊玩，终于 阅读全文