回答編集履歴
2
コメントがメソッドに付くように修正
answer
CHANGED
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@@ -21,7 +21,6 @@
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21
21
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public String toString() { return super.toString().replaceAll("_", " "); }
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22
22
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23
23
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/** 価値の高い順の Set を返す. */
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24
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-
static private Set<Money> descValues = null;
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25
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static Set<Money> descendingValues() {
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26
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if(descValues == null) {
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27
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descValues = new TreeSet<>(Comparator.comparing(Money::getValue).reversed()); //大きい順
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@@ -29,6 +28,7 @@
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29
28
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}
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30
29
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return descValues;
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31
30
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}
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31
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+
static private Set<Money> descValues = null;
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32
32
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}
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33
33
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34
34
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public class Main {
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1
Money の大きい順 Set 周りを変更
answer
CHANGED
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@@ -21,17 +21,18 @@
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21
21
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public String toString() { return super.toString().replaceAll("_", " "); }
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22
22
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23
23
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/** 価値の高い順の Set を返す. */
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24
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+
static private Set<Money> descValues = null;
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24
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-
static Set<Money>
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25
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+
static Set<Money> descendingValues() {
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26
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if(descValues == null) {
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25
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-
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27
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descValues = new TreeSet<>(Comparator.comparing(Money::getValue).reversed()); //大きい順
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26
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-
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28
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descValues.addAll(Arrays.asList(values()));
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29
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}
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27
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-
return
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30
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return descValues;
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28
31
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}
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29
32
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}
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30
33
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31
34
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public class Main {
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32
35
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public static void main(String[] args) throws IOException {
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33
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-
Set<Money> moneys = Money.getDescendingSet();
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34
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-
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35
36
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try (InputStreamReader reader = new InputStreamReader(System.in);
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36
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BufferedReader in = new BufferedReader(reader); ) {
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for(String line; (line = in.readLine()) != null; ) {
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@@ -46,15 +47,15 @@
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46
47
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} else if(change.signum() == 0) {
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47
48
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System.out.println("ZERO");
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48
49
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} else {
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49
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-
print(prepare(change
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50
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+
print(prepare(change));
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50
51
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}
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51
52
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}
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53
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}
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53
54
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}
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54
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-
/** change 分の紙幣/硬貨を用意
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55
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+
/** change 分の紙幣/硬貨を用意 */
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55
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-
private static Map<Money,BigDecimal> prepare(BigDecimal change
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56
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+
private static Map<Money,BigDecimal> prepare(BigDecimal change) {
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56
57
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Map<Money,BigDecimal> result = new HashMap<>();
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57
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-
for(Money m :
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58
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+
for(Money m : Money.descendingValues()) {
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58
59
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if(change.compareTo(m.getValue()) >= 0) {
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59
60
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BigDecimal[] dr = change.divideAndRemainder(m.getValue()); //[0]=商,[1]=剰余
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60
61
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result.put(m, dr[0]);
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