回答編集履歴
1
コードの修正
answer
CHANGED
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@@ -42,10 +42,9 @@
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42
42
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43
43
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Node factor() {
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44
44
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Node node = null;
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45
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-
get();
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46
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-
if (
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45
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+
if (get().equals("(")) {
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47
46
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node = expr();
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48
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-
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47
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+
token = token.equals(")") ? get() : "x";
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49
48
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}
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50
49
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else if (token.isEmpty()) token = "x";
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51
50
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else { node = new Node(token, null, null); get(); }
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