cowmultiplication.java

来自「PKU中一些数据结构基本算法题的java实现」· Java 代码 · 共 28 行

import java.util.Scanner;


public class CowMultiplication {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner cin = new Scanner(System.in);
		String A = cin.next();
		String B = cin.next();
		int len1 = A.length();
		int len2 = B.length();
		long result = 0;
		for(int i=0;i<len1;i++){
			for(int j=0;j<len2;j++){
				int a = Integer.parseInt(""+A.charAt(i));
				int b = Integer.parseInt(""+B.charAt(j));
				result += a*b;
			}
		}
		System.out.println(result);

	}

}