陈杰鑫网络安全进阶红队渗透测试方向

public static int[] coin = new int[]{0, 1, 5, 10, 25};    public static int[] coins = new int[]{1, 5, 10, 25};    public static HashMap<Integer, Integer> cache = new HashMap<>();    public static int f(int k, int n) {        if (k == 1) {            return 1;        }