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#include <iostream> #include <vector> #include <algorithm> using namespace std; int main() { vector<int> numbers; numbers.push_back(3); //numbers = [3] numbers.push_back(1); //numbers = [3, 1] numbers.push_back(5); //numbers = [3, 1, 5] numbers.push_back(7); //numbers = [3, 1, 5, 7] sort(numbers.begin(), numbers.end()); //numbers = [1, 3, 5, 7] reverse(numbers.begin(), numbers.end()); //numbers = [7, 5, 3, 1] swap(numbers[0], numbers[1]); //numbers = [5, 7, 3, 1] cout << numbers[0] << endl; //5 return 0; }
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