JAVA问题 等一个解答

Question

用JAVA编写程序：给定大于零的整数n，要求输出由一元两元和五元纸币组成n元钱的所有方案

Answer 1

import java.util.ArrayList;
import java.util.List;

public class MoneyCombination {

    public static void main(String[] args) {
        int n = 10; // 你可以将这个值改为任何大于零的整数
        List<String> combinations = findCombinations(n);
        System.out.println("共有 " + combinations.size() + " 种组合:");
        for (String combination : combinations) {
            System.out.println(combination);
        }
    }

    private static List<String> findCombinations(int n) {
        List<String> combinations = new ArrayList<>();
        for (int five = 0; five <= n / 5; five++) {
            for (int two = 0; two <= (n - 5 * five) / 2; two++) {
                int one = n - 5 * five - 2 * two;
                combinations.add("5元纸币: " + five + ", 2元纸币: " + two + ", 1元纸币: " + one);
            }
        }
        return combinations;
    }
}