1300: 实验2-2-3 删除子串的C风格字符串与string实现 / Removing Substrings with C-Style Strings and string
Memory Limit：128 MB
Time Limit：1.000 S
Judge Style：Text Compare
Creator：
Submit：157
Solved：140
Description
【中文题面】
从键盘输入两个字符串，两个字符串都可能包含空格。判断第二个字符串是否在第一个字符串中出现。若出现，从左到右扫描第一个字符串。每当当前位置开始能匹配第二个字符串，就删除这一段，然后从这段之后继续扫描；已经被删除的字符不能再参与下一次匹配。若没有出现，则直接输出第一个字符串。
课堂要求：本题在同一个OJ题目中提交两种solution：第一种使用C风格字符串（字符数组或char*）实现，第二种使用string实现。保证第二个字符串非空，匹配区分大小写。
[English Statement]
Input two strings from the keyboard. Both strings may contain spaces. Determine whether the second string appears in the first string. If it appears, possibly multiple times, remove all non-overlapping occurrences of the second string from left to right and output the remaining content. If it does not appear, output the first string directly.
Class requirement: submit two solutions to the same OJ problem. The first solution should use C-style strings (character arrays or char*), and the second should use string. The second string is guaranteed to be non-empty, and matching is case-sensitive.
从键盘输入两个字符串，两个字符串都可能包含空格。判断第二个字符串是否在第一个字符串中出现。若出现，从左到右扫描第一个字符串。每当当前位置开始能匹配第二个字符串，就删除这一段，然后从这段之后继续扫描；已经被删除的字符不能再参与下一次匹配。若没有出现，则直接输出第一个字符串。
课堂要求：本题在同一个OJ题目中提交两种solution：第一种使用C风格字符串（字符数组或char*）实现，第二种使用string实现。保证第二个字符串非空，匹配区分大小写。
[English Statement]
Input two strings from the keyboard. Both strings may contain spaces. Determine whether the second string appears in the first string. If it appears, possibly multiple times, remove all non-overlapping occurrences of the second string from left to right and output the remaining content. If it does not appear, output the first string directly.
Class requirement: submit two solutions to the same OJ problem. The first solution should use C-style strings (character arrays or char*), and the second should use string. The second string is guaranteed to be non-empty, and matching is case-sensitive.
Input
【输入】
第一行输入第一个字符串。第二行输入第二个字符串。字符串长度不超过1000。
[Input]
The first line contains the first string. The second line contains the second string. The length of each string does not exceed 1000.
第一行输入第一个字符串。第二行输入第二个字符串。字符串长度不超过1000。
[Input]
The first line contains the first string. The second line contains the second string. The length of each string does not exceed 1000.
Output
【输出】
输出删除后的字符串。若全部删除，则输出空行。
[Output]
Output the resulting string. If all characters are removed, output an empty line.
输出删除后的字符串。若全部删除，则输出空行。
[Output]
Output the resulting string. If all characters are removed, output an empty line.
Sample Input Copy
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AI
Sample Output Copy
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HINT
C风格版本建议使用cin.getline读入包含空格的字符串，并手写匹配过程。string版本可使用getline和基础成员函数。
For the C-style version, use cin.getline to read strings containing spaces and write the matching logic manually. For the string version, use getline and basic member functions.
For the C-style version, use cin.getline to read strings containing spaces and write the matching logic manually. For the string version, use getline and basic member functions.