猪都哭了

摘要： 题意/Description: Katu Puzzle is presented as a directed graph G(V, E) with each edge e(a, b) labeled by a boolean operator op (one of AND, OR, XOR) and 阅读全文

摘要： 题意/Description: Every cow's dream is to become the most popular cow in the herd. In a herd of N (1 <= N <= 10,000) cows, you are given up to M (1 <= M 阅读全文

摘要： 题意/Description: A number of schools are connected to a computer network. Agreements have been developed among those schools: each school maintains a l 阅读全文

摘要： 题意/Description： 大学里实行学分。每门课程都有一定的学分，学生只要选修了这门课并考核通过就能获得相应的学分。学生最后的学分是他选修的各门课的学分的总和。 每个学生都要选择规定数量的课程。其中有些课程可以直接选修，有些课程需要一定的基础知识，必须在选了其它的一些课程的基础上才能选修。例如 阅读全文

摘要： 题意/Description： These days, Sempr is crazed on one problem named Crazy Thair. Given N (1 ≤ N ≤ 50000) numbers, which are no more than 109, Crazy Thair 阅读全文

摘要： 题意/Description： N (2 <= N <= 8,000) cows have unique brands in the range 1..N. In a spectacular display of poor judgment, they visited the neighborhoo 阅读全文

摘要： 题意/Description： Railway tickets were difficult to buy around the Lunar New Year in China, so we must get up early and join a long queue… The Lunar New 阅读全文

摘要： 题意/Description： Chosen Problem Solving and Program design as an optional course, you are required to solve all kinds of problems. Here, we get a new p 阅读全文

摘要： 题意/Description： There is an apple tree outside of kaka's house. Every autumn, a lot of apples will grow in the tree. Kaka likes apple very much, so he 阅读全文

摘要： 题意/Description： 潘塔纳尔沼泽地号称世界上最大的一块湿地，它地位于巴西中部马托格罗索州的南部地区。每当雨季来临，这里碧波荡漾、生机盎然，引来不少游客。 为了让游玩更有情趣，人们在池塘的中央建设了几座石墩和石桥，每座石桥连接着两座石墩，且每两座石墩之间至多只有一座石桥。这个景点造好之后一 阅读全文