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  • java hdu A+B for Input-Output Practice (III)

    A+B for Input-Output Practice (III)

    Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
    Total Submission(s): 113961    Accepted Submission(s): 60127


    Problem Description
    Your task is to Calculate a + b.
     
    Input
    Input contains multiple test cases. Each test case contains a pair of integers a and b, one pair of integers per line. A test case containing 0 0 terminates the input and this test case is not to be processed.
     
    Output
    For each pair of input integers a and b you should output the sum of a and b in one line, and with one line of output for each line in input. 
     
    Sample Input
    1 5 10 20 0 0
     
    Sample Output
    6 30
     
    Author
    lcy
     

    值得注意的是怎么判断一个大数是否等于一个数,以及怎么把一个数转化为大数形式,注意大数实质上就是字符串

    import java.math.BigInteger;
    import java.util.Scanner;
    public class Main//注意刷题时的java格式
    {
        public static void main(String[] args)
        { 
            BigInteger a,b,d;
            String c = "0";
            d = new BigInteger(c);//将c转化为大数形式,用d保存
            Scanner in = new Scanner(System.in);
            while(in.hasNextBigInteger())
            {
                a = in.nextBigInteger();
                b = in.nextBigInteger();
                if(a.compareTo(d) == 0 && b.compareTo(d) == 0 )//注意用一个大数类自带方法来判断两个大数是否相等
                    break;
                System.out.println(a.add(b));
            }
        }
    }
    彼时当年少,莫负好时光。
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  • 原文地址:https://www.cnblogs.com/l609929321/p/7043714.html
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