A+B Coming

Description

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 9A Ba b 

 

Sample Output

 102121 

 

主要是strtol函数的运用，它可以将字符串里面的数字传换成10进制。

#include<stdio.h>#include <stdlib.h>int main(){char a[16],b[16];long long x,y,sum;while(scanf("%s%s",&a,&b)!=EOF){ x=strtol( a,NULL,16);      y=strtol( b, NULL,16);  sum=x+y; if(sum<0){ sum=-sum; printf("-%d\n",sum);} else  printf("%d\n",sum);  }}

。