摘要：
A number that will be the same when it is written forwards or backwards is known as a Palindromic Number. For example, 1234321 is a palindromic number. All single digit numbers are palindromic numbers... 阅读全文
posted @ 2015-12-06 10:28
白夜行zz
阅读(325)
评论(0)
推荐(0)
摘要：
Notice that the number 123456789 is a 9-digit number consisting exactly the numbers from 1 to 9, with no duplication. Double it we will obtain 246913578, which happens to be another 9-digit number con... 阅读全文
posted @ 2015-12-06 10:25
白夜行zz
阅读(162)
评论(0)
推荐(0)
摘要：
A Digital Library contains millions of books, stored according to their titles, authors, key words of their abstracts, publishers, and published years. Each book is assigned an unique 7-digit number a... 阅读全文
posted @ 2015-12-06 10:24
白夜行zz
阅读(219)
评论(0)
推荐(0)
摘要：
首先计算连通分量。dfs然后分两种情况，n数目很小的时候对每个节点dfs，n大的时候超时n数目大的时候计算只具有单边的节点数。n小的时候答案错误两者结合就好了，当然这是一种不可取的办法。。。。。A graph which is connected and acyclic can be considered a tree. The height of the tree depends on the ... 阅读全文
posted @ 2015-12-06 10:22
白夜行zz
阅读(206)
评论(0)
推荐(0)
摘要：
根据两种遍历方式建立二叉树层遍历二叉树时间限制400 ms内存限制65536 kB代码长度限制16000 B判题程序Standard作者CHEN, YueSuppose that all the keys in a binary tree are distinct positive integers. Given the postorder and inorder traversal sequen... 阅读全文
posted @ 2015-12-06 10:19
白夜行zz
阅读(135)
评论(0)
推荐(0)
摘要：
比较复杂的dfs 注意算好到底需要send多少take back多少时间限制400 ms内存限制65536 kB代码长度限制16000 B判题程序Standard作者CHEN, YueThere is a public bike service in Hangzhou City which provides great convenience to the tourists from all ov... 阅读全文
posted @ 2015-12-06 10:18
白夜行zz
阅读(145)
评论(0)
推荐(0)
摘要：
时间限制400 ms内存限制65536 kB代码长度限制16000 B判题程序Standard作者CHEN, YueA number that will be the same when it is written forwards or backwards is known as a Palindromic Number. For example, 1234321 is a palindromi... 阅读全文
posted @ 2015-12-06 10:18
白夜行zz
阅读(148)
评论(0)
推荐(0)
摘要：
时间限制400 ms内存限制65536 kB代码长度限制16000 B判题程序Standard作者CHEN, Yue 去掉非法数据计算账单A long-distance telephone company charges its customers by the following rules:Making a long-distance call costs a certain amoun... 阅读全文
posted @ 2015-12-06 10:17
白夜行zz
阅读(305)
评论(0)
推荐(0)
摘要：
排队模型时间限制400 ms内存限制65536 kB代码长度限制16000 B判题程序Standard作者CHEN, YueSuppose a bank has K windows open for service. There is a yellow line in front of the windows which devides the waiting area into two part... 阅读全文
posted @ 2015-12-06 10:17
白夜行zz
阅读(158)
评论(0)
推荐(0)
摘要：
1，不同基底的反数算法，2，输入 cin 使用A reversible prime in any number system is a prime whose "reverse" in that number system is also a prime. For example in the decimal system 73 is a reversible prime because its ... 阅读全文
posted @ 2015-12-06 10:15
白夜行zz
阅读(131)
评论(0)
推荐(0)
浙公网安备 33010602011771号