摘要:
并查集类 阅读全文
摘要:
题目Now and then you play the following game with your friend. Your friend writes down a sequence consisting of zeroes and ones. You cho... 阅读全文
摘要:
先放题目A supermarket has a set Prod of products on sale. It earns a profit px for each product x∈Prod sold by a deadline dx that is meas... 阅读全文