Kth digit from right of A^B

PROGRAM TO PRINT K-th DIGIT IN A^B FROM RIGHT SIDE

import java.util.*;

import java.lang.*;

  

public class MAIN {

    // To compute k-th digit in a^b

    public static int kthdigit(int a, int b, int k)

    {

        // Computing a^b

        int p = (int)Math.pow(a, b);

  

        int count = 0;

        while (p > 0 && count < k) {

  

            // Getting last digit

            int rem = p % 10;

  

            // Increasing count by 1

            count++;

  

            // If current number is required digit

            if (count == k)

                return rem;

  

            // Remove last digit

            p = p / 10;

        }

  

        return 0;

    }

      

    // Driver Code 

    public static void main(String argc[]) {

        int a = 5, b = 2;

        int k = 1;

        System.out.println(kthdigit(a, b, k));

    }    

}

OUTPUT

5

CREDITS: https://www.geeksforgeeks.org/k-th-digit-raised-power-b/