回答編集履歴
1
微修正
answer
CHANGED
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@@ -8,7 +8,7 @@
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8
8
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iterator_poi_counter() : count_(0) {}
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9
9
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iterator_poi_counter& operator++() { ++count_; return *this; }
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10
10
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iterator_poi_counter& operator--() { --count_; return *this; }
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11
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-
int operator*() const { return
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11
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+
int operator*() const { return count_; } // これな。
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12
12
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};
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13
13
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14
14
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int main() {
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