121另类乘法 For example, the product 123*45 is equal to 1*4 + 1*5 + 2*4 + 2*5 + 3*4 + 3*5 = 54.
#include<stdio.h>
int main()
{
int a,b,a1,b1,b0,n,i;
scanf("%d",&n);
for(i=0;i<n;i++)
{
int s=0;
scanf("%d%d",&a,&b);
b0=b;
while(a)
{
a1=a%10;
a/=10;
b=b0;
while(b)
{
b1=b%10;
b/=10;
s=s+a1*b1;
}
}
printf("%d\n",s);
}return 0;
}
优秀并不是终点,我要做到无可替代