A + B Again
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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.
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Sample Input
+A -A
+1A 12
1A -9
-1A -12
1A -AA -
Sample Output
0
2C
11
-2C
-90
题意：
给两个16进制的数，计算两数和
代码如下：
#include<stdio.h>
int main(void)
{
__int64 a, b;
while(scanf("%I64x%I64X", &a, &b) != EOF)
printf(a+b<0?"-%I64X\n":"%I64X\n", a+b<0?-a-b:a+b);
return 0;
}