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delete_element.cpp
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47 lines (38 loc) · 1023 Bytes
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#include "delete_element.h"
#include <algorithm>
auto DeleteElement::DeleteDuplicates(std::vector<int>& numbers) -> std::vector<int>
{
if (numbers.empty())
{
return {};
}
int write_index = 1;
for (int i = 1; i < static_cast<int>(numbers.size()); ++i)
{
if (numbers[write_index - 1] != numbers[i])
{
numbers[write_index] = numbers[i];
++write_index;
}
}
return std::vector<int>{numbers.begin(), numbers.begin() + write_index};
}
auto DeleteElement::DeleteDuplicateElements(std::vector<int>& numbers) -> std::vector<int>
{
if (numbers.empty())
{
return {};
}
std::ranges::sort(numbers);
numbers.erase(std::ranges::unique(numbers).begin(), numbers.end());
return numbers;
}
auto DeleteElement::DeleteSpecificElements(std::vector<int>& numbers, const int element) -> std::vector<int>
{
if (numbers.empty())
{
return {};
}
std::erase(numbers, element);
return numbers;
}