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Description Given an array with n integers, assume f(S) as the result of executing xor operation among all the elements of set S. e.g. if S={1,2,3} th 阅读全文
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今天参加了陕西师范大学的acm校赛，感觉相比于西工大校赛自己进步了不少，但是还是很水，a了4道，一道题特别坑，Case后面的：打成了封号，wa了四发。然后C题一直Output limit exceed，可惜它的OJ关掉了，还没弄清楚什么原因QAQ......晚饭时听李老大讲ACM，产生很多感慨，感觉 阅读全文
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B. Bear and Compressing 题目链接 Problem - B - Codeforces Limak is a little polar bear. Polar bears hate long strings and thus they like to compress them. 阅读全文