Caution_X - 博客园

HDU 1723 Distribute Message DP

摘要： The contest’s message distribution is a big thing in prepare. Assuming N students stand in a row, from the row-head start transmit message, each perso 阅读全文

posted @ 2019-09-30 13:54 Caution_X 阅读(98) 评论(0) 推荐(0) 编辑

HDU-1719 Friend 数学推导

摘要： Friend HDU - 1719 Friend number are defined recursively as follows. (1) numbers 1 and 2 are friend number; (2) if a and b are friend numbers, so is ab 阅读全文

posted @ 2019-09-30 13:53 Caution_X 阅读(184) 评论(0) 推荐(0) 编辑

A - QQpet exploratory park HDU - 1493 DP

摘要： A - QQpet exploratory park HDU - 1493 Today, more and more people begin to raise a QQpet. You can get a lot of pleasure from it, although it does not 阅读全文

posted @ 2019-09-30 13:50 Caution_X 阅读(155) 评论(0) 推荐(0) 编辑

CodeForces 463D DP

摘要： Gargari got bored to play with the bishops and now, after solving the problem about them, he is trying to do math homework. In a math book he have fou 阅读全文

posted @ 2019-09-27 17:58 Caution_X 阅读(136) 评论(0) 推荐(0) 编辑

POJ-1129 DFS染色+四色原理的应用

摘要： OJ-ID： POJ-1129author： Caution_Xdate of submission： 20190927tags： DFS+四色原理的应用description modelling：给定n个点的无向连通图，问至少需要几种颜色可以完成染色major steps to solve it 阅读全文

posted @ 2019-09-27 15:38 Caution_X 阅读(162) 评论(0) 推荐(0) 编辑

UVA 291 The House Of Santa Claus DFS

摘要：题目： In your childhood you most likely had to solve the riddle of the house of Santa Claus. Do you remember that the importance was on drawing the hous 阅读全文

posted @ 2019-09-16 01:30 Caution_X 阅读(170) 评论(0) 推荐(0) 编辑

POJ 3126 Prime Path BFS

摘要：题目： Prime Path Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 35295 Accepted: 18998 Description The ministers of the cabinet were quite up 阅读全文

posted @ 2019-09-16 00:57 Caution_X 阅读(131) 评论(0) 推荐(0) 编辑

UVA 10790 How Many Points of Intersection? 组合数学

摘要： We have two rows. There are a dots on the top row and b dots on the bottom row. We draw line segmentsconnecting every dot on the top row with every do 阅读全文

posted @ 2019-09-10 17:49 Caution_X 阅读(136) 评论(0) 推荐(0) 编辑

HDU 5047 Sawtooth 找规律+拆分乘

摘要： Sawtooth Think about a plane: ● One straight line can divide a plane into two regions. ● Two lines can divide a plane into at most four regions. ● Thr 阅读全文

posted @ 2019-09-09 19:23 Caution_X 阅读(131) 评论(0) 推荐(0) 编辑

HDU 5984 题解数学推导期望

摘要： Let’s talking about something of eating a pocky. Here is a Decorer Pocky, with colorful decorative stripes in the coating, of length L. While the leng 阅读全文

posted @ 2019-09-05 21:53 Caution_X 阅读(233) 评论(0) 推荐(0) 编辑