题解 | #特殊乘法#

//分别把每个数的每一位相加，再将两个加数相乘，如：12345=（1+2+3）（4+5）=54 #include <stdio.h> int main() { long long int a,b; while(scanf("%ld %ld ",&a,&b)!=EOF) { printf("%d",wei(a,b)); return 0; } } int wei(long long int a,long long int b) { int n1=0,n2=0; while(a!=0){ n1+=a%10; a=a/10; } while(b!=0){ n2+=b%10; b=b/10; } return n1*n2; }