题目：
The Seven Percent Solution |
| Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) |
| Total Submission(s): 2637 Accepted Submission(s): 1562 |
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Problem Description Uniform Resource Identifiers (or URIs) are strings like http://icpc.baylor.edu/icpc/, mailto:[email protected], ftp://127.0.0.1/pub/linux, or even just readme.txt that are used to identify a resource, usually on the Internet or a local computer. Certain characters are reserved within URIs, and if a reserved character is part of an identifier then it must be percent-encoded by replacing it with a percent sign followed by two hexadecimal digits representing the ASCII code of the character. A table of seven reserved characters and their encodings is shown below. Your job is to write a program that can percent-encode a string of characters. Character Encoding |
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Input The input consists of one or more strings, each 1–79 characters long and on a line by itself, followed by a line containing only "#" that signals the end of the input. The character "#" is used only as an end-of-input marker and will not appear anywhere else in the input. A string may contain spaces, but not at the beginning or end of the string, and there will never be two or more consecutive spaces. |
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Output For each input string, replace every occurrence of a reserved character in the table above by its percent-encoding, exactly as shown, and output the resulting string on a line by itself. Note that the percent-encoding for an asterisk is %2a (with a lowercase "a") rather than %2A (with an uppercase "A"). |
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Sample Input Happy Joy Joy! http://icpc.baylor.edu/icpc/ plain_vanilla (**) ? the 7% solution # |
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Sample Output Happy%20Joy%20Joy%21 http://icpc.baylor.edu/icpc/ plain_vanilla %28%2a%2a%29 ? the%207%25%20solution |
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Source Mid-Central USA 2007 |
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Recommend teddy |
题目分析：
按要求将字符串换成指定的字符串即可。因为用java比较快。所以使用java来实现
代码如下：
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
while(scanner.hasNext()){
String str = scanner.nextLine();
if(str.equals("#")){
return ;
}
str = str.replace("%", "%25");//因为替换的结果有%,所以把%的替换放在前面
str = str.replace(" ", "%20");
str = str.replace("!", "%21");
str = str.replace("$", "%24");
str = str.replace("(", "%28");
str = str.replace(")", "%29");
str = str.replace("*", "%2a");
System.out.println(str);
}
}
}