T3

黄昏晓寂

2025-05-08 16:02:50

发布于：浙江

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

int main() {
    int n;
    std::cin >> n;
    std::vector<int> numbers;
    for (int i = 1; i <= n; ++i) {
        numbers.push_back(i);
    }
    do {
        for (int i = 0; i < n; ++i) {
            std::cout << numbers[i];
            if (i < n - 1) {
                std::cout << " ";
            }
        }
        std::cout << std::endl;
    } while (std::next_permutation(numbers.begin(), numbers.end()));
    return 0;
}