JAVA的大数很强大的,才学习的,就做了道 A + B 的水题。
import java.math.BigInteger;
import java.util.Scanner;
public class Main {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner cin = new Scanner ( System.in );
int Case;
BigInteger a, b;
Case = cin.nextInt();
for ( int cnt = 1; cnt <= Case; ++cnt ) {
if ( cnt != 1 ) System.out.println ( );
a = cin.nextBigInteger();
b = cin.nextBigInteger();
System.out.println ( "Case " + cnt + ":" );
System.out.println ( a + " + " + b + " = " + a.add ( b ) );
}
}
}