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摘要:题目链接 Problem Description As we know, Rikka is poor at math. Yuta is worrying about this situation, so he gives Rikka some math tasks to practice. Ther 阅读全文
posted @ 2017-08-08 21:18 茶飘香~ 阅读(195) 评论(0) 推荐(0) 编辑
摘要:题目链接 Problem Description Sdjpx is a powful man,he controls a big country.There are n soldiers numbered 1~n(1<=n<=3000).But there is a big problem for 阅读全文
posted @ 2017-08-06 20:40 茶飘香~ 阅读(157) 评论(0) 推荐(0) 编辑
摘要:题目链接 Problem Description Give you an array A[1..n]of length n. Let f(l,r,k) be the k-th largest element of A[l..r].Specially , f(l,r,k)=0 if r−l+1<k.G 阅读全文
posted @ 2017-08-05 10:52 茶飘香~ 阅读(171) 评论(0) 推荐(0) 编辑
摘要:题目链接 Problem Description Give you an array A[1..n],you need to calculate how many tuples (i,j,k) satisfy that (i<j<k) and ((A[i] xor A[j])<(A[j] xor A 阅读全文
posted @ 2017-08-05 10:36 茶飘香~ 阅读(240) 评论(0) 推荐(0) 编辑
摘要:题目链接 Problem Description As to a permutation p1,p2,⋯,pn from 1 to n, it is uncomplicated for each 1≤i≤n to calculate (li,ri) meeting the condition tha 阅读全文
posted @ 2017-07-30 11:16 茶飘香~ 阅读(367) 评论(0) 推荐(0) 编辑
摘要:题目链接 Problem Description There is a tree with n nodes, each of which has a type of color represented by an integer, where the color of node i is ci.Th 阅读全文
posted @ 2017-07-30 10:36 茶飘香~ 阅读(215) 评论(0) 推荐(0) 编辑
摘要:题目链接 Problem Description sd0061, the legend of Beihang University ACM-ICPC Team, retired last year leaving a group of noobs. Noobs have no idea how to 阅读全文
posted @ 2017-07-28 15:45 茶飘香~ 阅读(488) 评论(0) 推荐(0) 编辑
摘要:题目链接 Problem Description Once upon a time Matt went to a small town. The town was so small and narrow that he can regard the town as a pivot. There we 阅读全文
posted @ 2017-07-27 21:25 茶飘香~ 阅读(182) 评论(0) 推荐(0) 编辑
摘要:题目链接 Problem Description Talented Mr.Tang has n strings consisting of only lower case characters. He wants to charge them with Balala Power (he could 阅读全文
posted @ 2017-07-27 19:31 茶飘香~ 阅读(177) 评论(0) 推荐(0) 编辑
摘要:题目链接 Problem Description You are a rich person, and you think your wallet is too heavy and full now. So you want to give me some money by buying a lov 阅读全文
posted @ 2017-07-18 22:01 茶飘香~ 阅读(172) 评论(0) 推荐(0) 编辑
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