Problem Description Now given two kinds of coins A and B,which satisfy that GCD(A,B)=1.Here you can assume that there are enough coins for both kinds.Please calculate the maximal value that you cannot pay and the total number that you cannot pay.
Input The input will consist of a series of pairs of integers A and B, separated by a space, one pair of integers per line.
Output For each pair of input integers A and B you should output the the maximal value that you cannot pay and the total number that you cannot pay, and with one line of output for each line in input.
Sample Input 2 3 3 4
Sample Output 1 1 5 3
因为数据太大了就打表找规律。
代码语言：javascript复制import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int a,b;
while(in.hasNext())
{
a=in.nextInt();
b=in.nextInt();
System.out.println(a*b-a-b " " (a-1)*(b-1)/2);
}
in.close();
}
}
