Kyselyt

// @author Anssi

import java.util.Scanner;

public class KyselytTehtava {

    public static void main(String[] args) {
        
        Scanner input = new Scanner(System.in);
        
        int count = input.nextInt();
        int[] queries = new int[count];
        
        for (int i = 0; i < count; i++) {
            
            queries[i] = input.nextInt();
        }
        
        for (int i = 0; i < count; i++) {
            
            System.out.println(completeQuery(queries[i]));
        }

    }
    
    private static char completeQuery(int index) {
        
        StringBuilder myString = new StringBuilder();
        
        int i = 0;
        
        while (true) {
            
            i++;
            
            myString.append(i);
            
            if (myString.length() >= index) {
                
                return myString.charAt(index - 1);
            }
        }
    }
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 3

Group: 3

Verdict: RUNTIME ERROR

Exception in thread "main" java.util.InputMismatchException: For input string: "672274832941907421"
	at java.util.Scanner.nextInt(Scanner.java:2123)
	at java.util.Scanner.nextInt(Scanner.java:2076)
	at KyselytTehtava.main(KyselytTehtava.java:17)