洛谷p1618三连击

 

import java.util.Scanner;
//将 1-9 共9个数分成3组，分别组成3个三位数，且使这3个三位数构成A:B:C的比例，试求出所有满足条件的3个三位数。不满足输出“No!!!”。
public class Main {public static void main(String[] args) {Scanner sc = new Scanner(System.in);int a = sc.nextInt();int b = sc.nextInt();int c = sc.nextInt();int count = 0;for (int i = 123; i <=333; i++) {int A = a * i;int B = b * i;int C = c * i;//ABC个，十，百位分别相加=1+2+3+4+5+6+7+8+9&&ABC个，十，百位相乘=1*2*3*4*5*6*7*8*9boolean flag=(A / 100 + A / 10 % 10 + A % 10 + B / 100 + B / 10 % 10 + B % 10 + C / 100 + C / 10 % 10 + C % 10 == 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 )&&((A / 100) *(A / 10 % 10)  * (A % 10 )* (B / 100 )* (B / 10 % 10 )* (B % 10 )* (C / 100) *(C / 10 % 10) * (C % 10) == 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9);if (flag) {count++;System.out.println(A+" "+B+" "+C);}}if (count == 0) {System.out.println("No!!!");}}
}