标签：
A - A+-B
Time Limit: 20 Sec
Memory Limit: 256 MB
题目连接
http://acm.hust.edu.cn/vjudge/contest/view.action?cid=86686#problem/A
Description
You are given the integer numbers A and B. Output A + B or A - B.
Input
The first line contains two numbers A, B separeted by a single space ( - 263 ≤ A, B < 263).
Output
Output one integer number: A + B or A - B.
Sample Input
15 27
Sample Output
42
HINT
题意
给你a,b，让你输出a+b或者a-b，需要保证输出的值是一个integer
题解：
高精度一下，然后输出最小的就好了
用的JAVA = =
代码：
import java.util.*; import java.io.*; import java.math.*; public class Main { public static void main(String [] args) { Scanner in = new Scanner(System.in); BigInteger a = in.nextBigInteger(); BigInteger b = in.nextBigInteger(); BigInteger c = a.add(b); BigInteger d = a.subtract(b); BigInteger f; BigInteger kiss; kiss = BigInteger.valueOf(0); f = BigInteger.valueOf(-1); int test = d.compareTo(kiss); if( test == -1 ) d = d.multiply(f); test = c.compareTo(d); if( test == 1 ) System.out.println(a.subtract(b)); else System.out.println(a.add(b)); } }
Codeforces Gym 100418A A - A+-B java高精度
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原文地址：http://www.cnblogs.com/qscqesze/p/4711646.html
