FJ的字符串-简单递归 问题描述FJ在沙盘上写了这样一些字符串: A1 = “A” A2 = “ABA” A3 = “ABACABA” A4 = “ABACABADABACABA” … … 你能找出其中的规律并写所有的数列AN吗? 输入格式仅有一个数:N ≤ 26. 输出格式请输出相应的字符串AN,以一个换行符结束.输出中不得含有多余的空格或换行.回车符. 样例输入3 样例输出ABACABA 代码如下: #include<stdio.h> void act(int i) { if (i) {…

Problem Description 每个人的童年都可能梦想过自己成为一个英雄,尤其是喜欢武侠的男生,Yifenfei也不例外. 童年的他常常梦想自己能成为一个绝世英雄,手拿一把灿灿发亮的宝剑,手挽一位长发飘逸的秀丽气质MM ^_^ ,散步于清幽的泉边小道,微风吹过,飘落两片枫叶...... 正由于成天陶醉于这种脱世的意境之中,导致此人老大不小依旧形单影只,每天只能在人潮中孤单上路...... 现在就让我们为这个可怜的人创造一个机会,权当假设yifenfei现在已经捕获一位MM的芳心,但该MM…

Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1780    Accepted Submission(s): 635 Problem Description After Gardon had got Angel's letter, he found it was encoded...Oh my god, why did she enco…

传送门 Description Byteasar is addicted to the English letter 'q'. Now he comes across a string S consisting of lowercase English letters. He wants to find all the continous substrings of S, which only contain the letter 'q'. But this string is really r…

HDU Today Time Limit: 15000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 23854    Accepted Submission(s): 5743 Problem Description 经过锦囊相助,海东集团终于度过了危机,从此,HDU的发展就一直顺风顺水,到了2050年,集团已经相当规模了,据说进入了钱江肉丝经济开发区500强.这时候…

Python反转字符串的最简单方法是用切片: >>> a=' >>> print a[::-1] 654321 切片介绍:切片操作符中的第一个数(冒号之前)表示切片开始的位置,第二个数(冒号之后)表示切片到哪里结束,第三个数(冒号之后)表示切片间隔数.如果不指定第一个数,Python就从序列首开始.如果没有指定第二个数,则Python会停止在序列尾.注意,返回的序列从开始位置开始 ,刚好在结束位置之前结束.即开始位置是包含在序列切片中的,而结束位置被排斥在切片外. 这样…

HDU Today Time Limit: 15000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 26104    Accepted Submission(s): 6341 Problem Description 经过锦囊相助,海东集团终于度过了危机,从此,HDU的发展就一直顺风顺水,到了2050年,集团已经相当规模了,据说进入了钱江肉丝经济开发区500强.这时候,…

Text Reverse                                                                                  Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Problem Description Ignatius likes to write words in reverse way. Given…

Problem Description Ignatius is building an Online Judge, now he has worked out all the problems except the Judge System. The system has to read data from correct output file and user's result file, then the system compare the two files. If the two f…

Problem Description Ignatius likes to write words in reverse way. Given a single line of text which is written by Ignatius, you should reverse all the words and then output them. Input The input contains several test cases. The first line of the inpu…