#include <iostream>
#include <vector>
#include <algorithm>

int main() {
    std::vector<int> v = {1, 2, 3, 4, 5};
    std::reverse(v.begin(), v.end());
    for (int i : v) {
        std::cout << i << ' ';
    }
    std::cout << std::endl;
    return 0;
}
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