#include
#include
int jia_fa(char *a,int n,char *b,int m)
{
int wei_sum=0,num1=0,sum=0,i=1;
while(n||m)
{
num1=(wei_sum=(n>0?(*(a+n---1)-'0'):0)+(m>0?(*(b+m---1)-'0'):0)+wei_sum/10)%10;
// num1=(wei_sum=(*(a+n---1)-'0')+(*(b+m---1)-'0')+wei_sum/10)%10;
printf("num1 is %d\n",num1);
num1 *= i;
sum += num1;
i*=10;
}
return sum;
}
main()
{
char a[200],b[200];
int sum=0;
printf("in put 2 number:\n");
scanf("%s %s",a,b) ;
sum = jia_fa(a,strlen(a),b,strlen(b));
printf("sum is %d\n",sum);
getchar();
}
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