Uva 10976

分析：对等式变型可得y的范围在k到2k之间，暴力。

import java.util.ArrayList;import java.util.List;import java.util.Scanner;public class Main{public static void main(String[] args) {Scanner scanner = new Scanner(System.in);while (scanner.hasNext()) {int k = scanner.nextInt();List<String> list = new ArrayList<>();for (int y = k + 1; y <= 2 * k; y++) {int dividend = k * y;int divisor = y - k;if (dividend % divisor == 0) {int x = dividend / divisor;String string = "1/" + k + " = " + "1/" + x + " + " + "1/" + y;list.add(string);}}System.out.println(list.size());for (String string : list) {System.out.println(string);}}}}