PAT甲级1050
2017-01-18 23:40
447 查看
1050. String Subtraction (20)
时间限制10 ms
内存限制
65536 kB
代码长度限制
16000 B
判题程序
Standard
作者
CHEN, Yue
Given two strings S1 and S2, S = S1 - S2 is defined to be the remaining string after taking all the characters in S2 from
S1. Your task is simply to calculate S1 - S2 for any given strings. However, it might not be that simple to do it fast.
Input Specification:
Each input file contains one test case. Each case consists of two lines which gives S1 and S2, respectively. The string lengths of both strings are no more than 104.
It is guaranteed that all the characters are visible ASCII codes and white space, and a new line character signals the end of a string.
Output Specification:
For each test case, print S1 - S2 in one line.
Sample Input:
They are students. aeiou
Sample Output:
Thy r stdnts.
#include<cstdio> #include<iostream> #include<string.h> #include<string> #include<vector> #include<algorithm> using namespace std; int main() { bool hashtable[128]; fill(hashtable, hashtable + 128, true);//bool hashtable[128] ={true};不会全部填充 char s1[10010], s2[10010]; //getline(cin, s1); //getline(cin, s2);用这个会超时 gets_s(s1); gets_s(s2);//提交时改为gets即可 int len1 = strlen(s1); int len2 = strlen(s2); for (int i = 0; i < len2; i++) { hashtable[s2[i]] = false; } for (int i = 0; i <len1; i++) { if (hashtable[s1[i]]) cout << s1[i]; } return 0; }
相关文章推荐
- 使用C++实现JNI接口需要注意的事项
- 关于指针的一些事情
- c++ primer 第五版 笔记前言
- share_ptr的几个注意点
- Lua中调用C++函数示例
- Lua教程(一):在C++中嵌入Lua脚本
- Lua教程(二):C++和Lua相互传递数据示例
- C++联合体转换成C#结构的实现方法
- C++高级程序员成长之路
- C++编写简单的打靶游戏
- C++ 自定义控件的移植问题
- C++变位词问题分析
- C/C++数据对齐详细解析
- C++基于栈实现铁轨问题
- C++中引用的使用总结
- 使用Lua来扩展C++程序的方法
- C++中调用Lua函数实例
- Lua和C++的通信流程代码实例
- C++的template模板中class与typename关键字的区别分析
- C与C++之间相互调用实例方法讲解