2020年7月16日
HDU 2612 Find a way
摘要： Pass a year learning in Hangzhou, yifenfei arrival hometown Ningbo at finally. Leave Ningbo one year, yifenfei have many people to meet. Especially a 阅读全文
posted @ 2020-07-16 23:02 Vetsama 阅读(102) 评论(0) 推荐(0)
HDU 1516 String Distance and Transform Process
摘要： String Distance is a non-negative integer that measures the distance between two strings. Here we give the definition. A transform list is a list of s 阅读全文
posted @ 2020-07-16 22:58 Vetsama 阅读(110) 评论(0) 推荐(0)
2020年3月27日
D. Carousel
摘要： The round carousel consists of nn figures of animals. Figures are numbered from 11 to nn in order of the carousel moving. Thus, after the nn-th figure 阅读全文
posted @ 2020-03-27 00:50 Vetsama 阅读(404) 评论(0) 推荐(0)
C. Ternary XOR
摘要： A number is ternary if it contains only digits 00, 11 and 22. For example, the following numbers are ternary: 10221022, 1111, 2121, 20022002. You are 阅读全文
posted @ 2020-03-27 00:46 Vetsama 阅读(343) 评论(0) 推荐(0)
B. K-th Beautiful String
摘要： For the given integer nn (n>2n>2) let's write down all the strings of length nn which contain n−2n−2 letters 'a' and two letters 'b' in lexicographica 阅读全文
posted @ 2020-03-27 00:44 Vetsama 阅读(507) 评论(0) 推荐(0)
A. Divisibility Problem
摘要： You are given two positive integers aa and bb. In one move you can increase aa by 11 (replace aa with a+1a+1). Your task is to find the minimum number 阅读全文
posted @ 2020-03-27 00:40 Vetsama 阅读(213) 评论(0) 推荐(0)
2020年3月20日
F - Maximum White Subtree
摘要： You are given a tree consisting of nn vertices. A tree is a connected undirected graph with n−1n−1 edges. Each vertex vv of this tree has a color assi 阅读全文
posted @ 2020-03-20 14:15 Vetsama 阅读(191) 评论(0) 推荐(0)
2020年3月14日
E - Sleeping Schedule
摘要： Vova had a pretty weird sleeping schedule. There are hh hours in a day. Vova will sleep exactly nn times. The ii-th time he will sleep exactly after a 阅读全文
posted @ 2020-03-14 23:16 Vetsama 阅读(403) 评论(0) 推荐(0)
D - Pair of Topics
摘要： The next lecture in a high school requires two topics to be discussed. The ii-th topic is interesting by aiaiunits for the teacher and by bibi units f 阅读全文
posted @ 2020-03-14 23:09 Vetsama 阅读(384) 评论(0) 推荐(0)
C - Frog Jumps
摘要： There is a frog staying to the left of the string s=s1s2…sns=s1s2…sn consisting of nn characters (to be more precise, the frog initially stays at the 阅读全文
posted @ 2020-03-14 22:57 Vetsama 阅读(363) 评论(0) 推荐(0)