勇士Hashmat 100055

Problem A

Hashmat the brave warrior

Input: standard input

Output: standard output

 

Hashmat is a brave warrior who with his group of young soldiers moves from one place to another to fight against his opponents. Before fighting he just calculates one thing, the difference between his soldier number and the opponent's soldier number. From this difference he decides whether to fight or not. Hashmat's soldier number is never greater than his opponent.

Input

The input contains two integer numbers in every line. These two numbers in each line denotes the number of soldiers in Hashmat's army and his opponent's army or vice versa. The input numbers are not greater than 2^32. Input is terminated by End of File.

 

Output

 For each line of input, print the difference of number of soldiers between Hashmat's army and his opponent's army. Each output should be in seperate line.

 

Sample Input:

10 12
10 14

100 200

Sample Output:

2
4
100

___________________________________________________________________________________
Shahriar Manzoor
16-12-2000

此题5次才AC  主要的错误就是数据的范围，原本使用int类型，结果错误，后改用long，结果还是错。最后用看了别人的代码后改用long long才通过。。。

下面是AC代码

#include <stdio.h>#include <math.h>int main(void){long long int  m, n;for (; scanf("%lld%lld", &m, &n) == 2; )printf("%lld\n", m>n ? m-n : n-m);return 0;}