2016秋季练习

来源：LightOJ1024

Java学习一个

import java.util.*;
import java.math.*;
import java.io.*;
public class Main{
public static void main(String args[]){
Scanner input = new Scanner(System.in);
int n;
BigInteger du;
int T,nc = 1;
T = input.nextInt();
while(T>0){
T--;
n = input.nextInt();
BigInteger start = BigInteger.ONE;
for(int i=0;i<n;i++) {
du = input.nextBigInteger();
start = start.divide(start.gcd(du)).multiply(du);
//printfBig(start);
}
System.out.printf("Case "+ nc + ": " + start.toString()+'\n');
System.gc();
nc ++;
}
}
}