Many classmates said to me that A+B is must needs. If you can’t AC
this problem, you would invite me for night meal. _
Input
Input may contain multiple test cases. Each case contains A and B in
one line. A, B are hexadecimal number. Input terminates by EOF.
Output
Output A+B in decimal number in one line.
Sample Input
1 9
A B
a b
Sample Output
10
21
21
%x是十六进制!
#include <cstdio>
int main()
{
int a,b;
while(~scanf("%x %x",&a,&b))
printf("%d\n",a+b);
return 0;
}