ZOJ Problem Set - 3490 String Successor Time Limit: 2 Seconds      Memory Limit: 65536 KB The successor to a string can be calculated by applying the following rules: Ignore the nonalphanumerics unless there are no alphanumerics, in this case, increa…
一道模拟题,来模拟进位 暴力的从右往左扫描,按规则求后继就好了.除了Sample已给出的,还有一些需要注意的地方: 9的后继是10,而不是00: (z)的后继是(aa),而不是a(a): 输入虽然最长只有100,但输出最长可能有102. 事实上题目中给的字符串后继规则,也是Ruby中String#succ或String#next所用的规则 http://blog.watashi.ws/1944/the-8th-zjpcpc/ 标程也写的非常好 //#pragma comment(linker,…
Time Limit: 2 Seconds Memory Limit: 65536 KB The successor to a string can be calculated by applying the following rules: Ignore the nonalphanumerics unless there are no alphanumerics, in this case, increase the rightmost character in the string. The…
题目链接:http://codeforces.com/contest/832/problem/B B. Petya and Exam time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output It's hard times now. Today Petya needs to score 100 points on Informatics…
Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". Update (2015-02-12): For C programmers: Try to solve it in-place in O(1) space. click to show clarification. Cl…
  系列文章目录地址: .NET面试题解析(00)-开篇来谈谈面试 & 系列文章索引 字符串可以说是C#开发中最常用的类型了,也是对系统性能影响很关键的类型,熟练掌握字符串的操作非常重要. 常见面试题目: 1.字符串是引用类型类型还是值类型? 2.在字符串连接处理中,最好采用什么方式,理由是什么? 3.使用 StringBuilder时,需要注意些什么问题? 4.以下代码执行后内存中会存在多少个字符串?分别是什么?输出结果是什么?为什么呢? " + "abc"; st…
问题: 大数相加不能直接使用基本的int类型,因为int可以表示的整数有限,不能满足大数的要求.可以使用字符串来表示大数,模拟大数相加的过程. 思路: 1.反转两个字符串,便于从低位到高位相加和最高位的进位导致和的位数增加: 2.对齐两个字符串,即短字符串的高位用‘0’补齐,便于后面的相加: 3.把两个正整数相加,一位一位的加并加上进位. 具体代码如下: /** * 用字符串模拟两个大数相加 * @param n1 加数1 * @param n2 加数2 * @return 相加结果 */ pu…
Problem Description 给定两个整数A和B,其表示形式是:从个位开始,每三位数用逗号","隔开.现在请计算A+B的结果,并以正常形式输出.   Input 输入包含多组数据数据,每组数据占一行,由两个整数A和B组成(-10^9 < A,B < 10^9).   Output 请计算A+B的结果,并以正常形式输出,每组数据占一行.   Sample Input -234,567,890 123,456,789 1,234 2,345,678   Sample…
To some string S, we will perform some replacement operations that replace groups of letters with new ones (not necessarily the same size). Each replacement operation has 3 parameters: a starting index i, a source word x and a target word y.  The rul…
The digital root of a positive integer is found by summing the digits of the integer. If the resulting value is a single digit then that digit is the digital root. If the resulting value contains two or more digits, those digits are summed and the pr…