fix longest span
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f03b0d6a42
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@ -41,7 +41,7 @@ int Span::shortestSpan() const
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int Span::longestSpan() const
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{
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if (this->_vector.size() == 0)
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if (this->_vector.size() < 2)
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throw std::exception();
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return *std::max_element(this->_vector.begin(), this->_vector.end()) - *std::min_element(this->_vector.begin(), this->_vector.end());
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}
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