摘要： Train SwappingAt an old railway station, you may still encounter one of the last remaining ``train swappers''. A train swapper is an employee of the r... 阅读全文

摘要： Tree's a CrowdDr William Larch, noted plant psychologist and inventor of the phrase ``Think like a tree--Think Fig'' has invented a new classification... 阅读全文

摘要： Where is the Marble?Raju and Meena love to play with Marbles. They have got a lot of marbles with numbers written on them. At the beginning, Raju woul... 阅读全文

摘要： List of ConquestsIn Act I, Leporello is telling Donna Elvira about his master's long list of conquests:``This is the list of the beauties my master ha... 阅读全文

摘要： Master-Mind HintsMasterMind is a game for two players. One of them,Designer, selects a secret code. The other,Breaker, tries to break it. A code is no... 阅读全文

摘要： 字母重排样例输入：tarp given score refund only trap work earn course pepper part******resco nfudre aptr sett oresuc样例输出：scorerefundpart tarp trap:(course题目要求：输... 阅读全文

摘要： 6174问题样例输入：1234样例输出：1234-> 3087-> 8352-> 6174-> 6174(4321-1234=3087,8730-378=8352，8532-2358=6174) ↑ ↑ 将3087从大到小排序 再反转 1 #include... 阅读全文

摘要： PalindromesA regular palindrome is a string of numbers or letters that is the same forward as backward. For example, the string"ABCDEDCBA"is a palindrome because it is the same when the string is read from left to right as when the string is read from right to left.A mirrored string is a s 阅读全文

摘要： Automatic EditingText-processing tools likeawkandsedallow you to automatically perform a sequence of editing operations based on a script. For this pr... 阅读全文

摘要： XOR and ORDescriptionThe Bitlandians are quite weird people. They do everything differently. They have a different alphabet so they have a different definition for a string.A Bitlandish string is a string made only of characters "0" and "1".BitHaval (the mayor of Bitland) loves t 阅读全文