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package test;
import java.util.Stack;
class Money {
int fen;
int number;
}
public class Fen {
static Stack<Money> stack = new Stack<Money>();
static int[] nums = new int[] { 25, 10, 5, 1 };
public static void fen(int target, int sum, int index) {
Money m = null;
for (int i = index; i < nums.length; i++) {
int num = nums[i];
if (num > target) { // 这里判断一下就可以了
continue;
}
m = new Money();
m.fen = num;
stack.push(m);
while (sum + num <= target) {
m.number++;
if (sum + num == target) {
showResult();
}
sum += num;
}
fen(target, sum, i + 1);
stack.pop();
sum -= m.fen * m.number;
}
}
private static void showResult() {
for (Money m : stack) {
if (m.number > 0) {
System.out.print(m.fen + ":" + m.number + " ");
}
}
System.out.println();
}
public static void main(String[] input) throws Exception {
fen(17, 0, 0);
}
}
static int[] nums = new int[] { 25, 10, 5, 1 };
package test;
import java.util.Stack;
class Money {
int fen;
int number;
}
public class Temp {
static Stack<Money> stack = new Stack<Money>();
static int[] nums = new int[] { 10, 5, 2, 1 };
public static void fen(int target, int sum, int index) {
for (int i = index; i < nums.length; i++) {
int num = nums[i];
Money m = new Money();
m.fen = num;
stack.push(m);
while (sum + num <= target) {
m.number++;
if (sum + num == target) {
showResult();
}
sum += num;
}
fen(target, sum, i + 1);
stack.pop();
sum -= m.fen * m.number;
}
}
private static void showResult() {
for (Money m : stack) {
if (m.number > 0) {
System.out.print(m.fen + ":" + m.number + " ");
}
}
System.out.println();
}
public static void main(String[] input) throws Exception {
fen(17, 0, 0);
}
}