PAT Advanced 1065 A+B and C (64bit) (20分)

Given three integers A, B and C in [−], you are supposed to tell whether A+B>C.

Input Specification:

The first line of the input gives the positive number of test cases, T (≤). Then T test cases follow, each consists of a single line containing three integers A, B and C, separated by single spaces.

Output Specification:

For each test case, output in one line Case #X: true if A+B>C, or Case #X: false otherwise, where X is the case number (starting from 1).

Sample Input:

3
1 2 3
2 3 4
9223372036854775807 -9223372036854775808 0

 

Sample Output:

Case #1: false
Case #2: true
Case #3: false

大数用Java比较方便

import java.math.BigInteger;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int N=sc.nextInt();
        BigInteger A,B,C;
        for(int i=1;i<=N;i++){
            A=sc.nextBigInteger();
            B=sc.nextBigInteger();
            C=sc.nextBigInteger();
            if(A.add(B).compareTo(C)>0){
                System.out.printf("Case #%d: true
",i);
            }else{
                System.out.printf("Case #%d: false
",i);
            }
        }
    }
}