27 lines
866 B
Java
27 lines
866 B
Java
// Author: Rodney Shaghoulian
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// Github: github.com/RodneyShag
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// HackerRank: hackerrank.com/RodneyShag
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import java.util.Scanner;
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import java.util.regex.Pattern;
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import java.util.regex.PatternSyntaxException;
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// If a PatternSyntaxException is not thrown by Pattern.compile, the regular expresion is valid
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public class Solution {
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public static void main(String[] args) {
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Scanner scan = new Scanner(System.in);
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int testCases = scan.nextInt();
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scan.nextLine(); // gets rid of the pesky newline.
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while (testCases-- > 0) {
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String pattern = scan.nextLine();
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try {
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Pattern.compile(pattern);
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System.out.println("Valid");
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} catch (PatternSyntaxException exception) {
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System.out.println("Invalid");
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}
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}
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scan.close();
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}
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}
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