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842. 排列数字
https://www.acwing.com/problem/content/submission/code_detail/6187818/
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AcWing/842/842.cpp
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18
AcWing/842/842.cpp
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#include <bits/stdc++.h>
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using namespace std;
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int main() {
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int n, a[10];
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cin >> n;
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for (int i = 0; i < n; i++) {
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a[i] = i + 1;
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}
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do {
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for (int i = 0; i < n; i++) {
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cout << a[i] << ' ';
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}
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cout << endl;
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} while (next_permutation(a, a + n));
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return 0;
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}
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