17028djwcb

17028djwcb

⭐️难度：中等
🌟考点：思维、高精度
📖

📚

import java.math.BigInteger;
import java.util.Scanner;

public class  Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

       int t = sc.nextInt();

       BigInteger k = new BigInteger("10");
       while(t-->0){
           BigInteger x = new BigInteger(sc.next());
           BigInteger p = new BigInteger(sc.next());

           System.out.println(x.modPow(p, k));
       }
    }
}

直接通过BigInteger的快速快速幂取模modPow