另类乘法 时间限制：3000 ms | 内存限制：65535 KB 难度：1
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描述
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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.
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输入
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The first Line of the input is a positive integer T,indicates the number of the test cases;
In every case,the input is in one line,contains two positive interger A,B
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输出
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For every case,output the multiplication in Bessie's style.
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样例输入
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1
123 45
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样例输出
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54
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来源
POJ
代码:
#include
int main()
{
int T,A,B,t,po,temp;
scanf("%d",&T);
while(T--)
{
scanf("%d%d",&A,&B);
po=0;
while(A)
{
t=A%10;
temp=B;
while(temp)
{
po+=temp%10*t;
temp/=10;
}
A/=10;
}
printf("%d\n",po);
}
return 0;
}
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