回答編集履歴
1
int -> double
answer
CHANGED
@@ -12,7 +12,7 @@
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12
12
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std::stack<double> s;
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13
13
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14
14
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for (auto v : input) {
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15
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-
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15
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+
double a, b;
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16
16
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if (v == "+") X(+);
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17
17
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else if (v == "-") X(-);
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18
18
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else if (v == "*") X(*);
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