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HDU2057 A + B Again【水题】


A + B Again





Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)


Total Submission(s): 16794    Accepted Submission(s): 7229



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


 


Author


linle


题目大意:给你两个带符号的16进制数A和B,输出A+B

思路:A和B比较大,用64位整数来存储,输入的时候用X%来控制输入、输出,

但是X%输入、输出的是无符号16进制数,应该再加个判断。

附带:

格式字符 格式字符意义 
d   以十进制形式输出带符号整数(正数不输出符号) 
o 以八进制形式输出无符号整数(不输出前缀O) 
x   以十六进制形式输出无符号整数(不输出前缀OX) 
u   以十进制形式输出无符号整数 
f   以小数形式输出单、双精度实数 
e   以指数形式输出单、双精度实数 
g   以%f%e中较短的输出宽度输出单、双精度实数 
c   输出单个字符 
s   输出字符串



#include<iostream>
#include<algorithm>
#include<cstdio>
using namespace std;

int main()
{
__int64 a,b;
while(~scanf("%I64X%I64X",&a,&b))
{
if(a + b >= 0)
printf("%I64X\n",a+b);
else
printf("-%I64X\n",-(a+b));
}
return 0;
}



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