标签：
Bessie is tired of multiplying pairs of numbers the usual way, so she invented her own style of multiplication. In her style, A*B is equal to the sum of all possible pairwise products between the digits of A and B. For example, the product 123*45 is equal to 1*4 + 1*5 + 2*4 + 2*5 + 3*4 + 3*5 = 54. Given two integers A and B (1 ≤ A, B ≤ 1,000,000,000), determine A*B in Bessie‘s style of multiplication.
1 123 45
54
代码：
01.//字符串转化成整形数组不能进行强制转化！！！02.#include<iostream>03.#include<string>04.#include<stdio.h>05.using
namespace std;06.int
main()07.{08.int
t;09.cin>>t;10.while(t--)11.{12.int
sum2=0,sum1=0,i,j;13.string a ,b;;14.cin>>a;15.cin>>b;16. 17.for(i = 0;i < a.length();i++)18.sum1 += a[i] -
‘0‘;19.for(j = 0;j < b.length();j++)20.sum2 += b[j] -‘0‘;21.cout<<sum1*sum2<<endl;22.}23.return
0;24.}标签：
原文地址：http://blog.csdn.net/u012701023/article/details/46006219
