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47 lines
862 B
47 lines
862 B
3 years ago
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#include <iostream>
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#include <list>
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// 2.
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template <class T>
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void printEnumerable(const T &enumerable) {
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bool first = true;
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for (const auto& item : enumerable) {
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if (first) first = false;
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else std::cout << ", ";
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std::cout << item;
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}
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std::cout << std::endl;
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}
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// 4.
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template <class T, typename V>
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void replaceFirstLast(T& enumerable, const V& newValue) {
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*std::begin(enumerable) = newValue;
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*std::rbegin(enumerable) = newValue;
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}
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// 5.
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template <class T>
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void erase5th(T& enumerable) {
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enumerable.erase(std::next(std::begin(enumerable), 4));
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}
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int main() {
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// 1.
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std::list<int> v {8, 4, 6, 1, 5, 3, 9, 5, 8, 123, 1, 2, 31, 24, 124, 12, 42, 131};
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// 2.
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printEnumerable(v);
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// 4.
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replaceFirstLast(v, 7);
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// 5.
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erase5th(v);
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// Print again to see changes
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printEnumerable(v);
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return 0;
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}
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