[백준] 1009번 : 분산처리 - Java(자바)

https://www.acmicpc.net/problem/1009

import java.util.*;
public class Main {
    public static void main(String args[]) {
        Scanner s=new Scanner(System.in);
        int n=s.nextInt();
        for(int i=0;i<n;i++){
            int a=s.nextInt();
            int b=s.nextInt();
            int num=1;
            for(int j=0;j<b;j++) num=(num*a)%10;
            if(num==0) num=10;
            System.out.println(num);
        }
    }
}