2015年8月9日
装雷达
摘要： Assume the coasting is an infinite straight line. Land is in one side of coasting, sea in the other. Each small island is a point locating in the sea ... 阅读全文
posted @ 2015-08-09 19:54 白一 阅读(225) 评论(0) 推荐(0)
喷水~~~~~~~~~
摘要： n sprinklers are installed in a horizontal strip of grass l meters long and w meters wide. Each sprinkleris installed at the horizontal center line o... 阅读全文
posted @ 2015-08-09 19:44 白一 阅读(472) 评论(0) 推荐(0)
区间覆盖
摘要： Given several segments of line (int the X axis) with coordinates [Li, Ri]. You are to choose the minimalamount of them, such they would completely cov... 阅读全文
posted @ 2015-08-09 19:22 白一 阅读(302) 评论(0) 推荐(0)
分披萨
摘要： 题意： My birthday is coming up and traditionally I’m serving pie. Not just one pie, no, I have a numberN of them,of various tastes and of various sizes.... 阅读全文
posted @ 2015-08-09 18:53 白一 阅读(224) 评论(0) 推荐(0)
2015年8月7日
抄书，分任务~~~~~~~
摘要： DescriptionBefore the invention of book-printing, it was very hard to make a copy of a book. All the contents had to be re-written by hand by so calle... 阅读全文
posted @ 2015-08-07 21:39 白一 阅读(273) 评论(0) 推荐(0)
左右相等
摘要： DescriptionOnce Bob took a paper stripe ofnsquares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly negativ... 阅读全文
posted @ 2015-08-07 20:36 白一 阅读(302) 评论(0) 推荐(0)
点灯笼
摘要： DescriptionVanya walks late at night along a straight street of lengthl, lit bynlanterns. Consider the coordinate system with the beginning of the str... 阅读全文
posted @ 2015-08-07 20:24 白一 阅读(244) 评论(0) 推荐(0)
归并排序找逆序数
摘要： 题意： bobo has a sequence a1,a2,…,an. He is allowed to swap twoadjacentnumbers for no more than k times.Find the minimum number of inversions after his ... 阅读全文
posted @ 2015-08-07 20:09 白一 阅读(357) 评论(0) 推荐(0)
2015年8月2日
在皇后问题的基础上输出棋子状态
摘要： Examine the $6\times 6$ checkerboard below and note that the six checkers are arranged on the board so that one and only one is placed in each row and... 阅读全文
posted @ 2015-08-02 19:50 白一 阅读(214) 评论(0) 推荐(0)
2015年7月30日
相邻数字相加为质数
摘要： 题意：A ring is composed of n (even number) circles as shown in diagram. Put natural numbersinto each circle separately, and the sum of numbers in two ad... 阅读全文
posted @ 2015-07-30 20:16 白一 阅读(564) 评论(0) 推荐(0)