摘要：
题目链接 Problem Description Now there are n gems, each of which has its own value. Alice and Bob play a game with these n gems.They place the gems in a r 阅读全文
摘要：
题目链接 Problem Description Uncle Mao is a wonderful ACMER. One day he met an easy problem, but Uncle Mao was so lazy that he left the problem to you. I 阅读全文