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25 lines
470 B
25 lines
470 B
#include <bits/stdc++.h>
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using namespace std;
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const int N = 10;
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int a[N];
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bool st[N];
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int n = 3;
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void dfs(int u) {
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if (u == n + 1) {
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for (int i = 1; i <= n; i++) cout << a[i] << " ";
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cout << endl;
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return;
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}
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for (int i = 1; i <= n; i++)
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if (!st[i]) {
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a[u] = i;
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st[i] = true;
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dfs(u + 1);
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st[i] = false;
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}
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}
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int main() {
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dfs(1);
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return 0;
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} |