HDOJ 2057A + B Again 16진수 문제

16진법에 대해 너무 익숙하지 않아서 슬프다. 흔히 볼 수 있는 진법 문제, 특히 진법 전환 문제에 대해 반드시 파악해야 한다.
16진수 입력과 출력.
코드는 다음과 같습니다.
#include int main() {     long long m,n;     while(~scanf("%llX%llX",&m,&n))     {         if(m+n>=0)             printf("%llX",m+n);         else             printf("-%llX",-(m+n));     }     return 0; }
제목:

A + B Again


Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 20656    Accepted Submission(s): 8896
Problem Description
There must be many A + B problems in our HDOJ , now a new one is coming.
Give you two hexadecimal integers , your task is to calculate the sum of them,and print it in hexadecimal too.
Easy ? AC it !
 
Input
The input contains several test cases, please process to the end of the file.
Each case consists of two hexadecimal integers A and B in a line seperated by a blank.
The length of A and B is less than 15.
 
Output
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

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