hdu 2057 A+B

题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=2057

For each test case,print the sum of A and B in hexadecimal in one line.

Sample Input

+A -A

+1A 12

1A -9

-1A -12

1A -AA

 

Sample Output

0

2C

11

-2C

-90

 #include <cstdio>
 #include <iostream>
 #include<algorithm>
 #include<math.h>
 #include <string.h>
 #include<queue>
 using namespace std;

 int main()
 {
     __int64 a,b;
     while(scanf("%I64X %I64X",&a,&b)!=EOF)
     {
         a+=b;
         if(a<)
         {
             a=-a;
             printf("-%I64X\n",a);
         }
         else
             printf("%I64X\n",a);//由于%I64X，不能输出
                                 //负数，所以负数的输出要做处理,注意要用 X
     }
     return ;
  }