27 lines
384 B
C++
27 lines
384 B
C++
// 92
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#include <cstdio>
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using namespace std;
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int c;
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int n;
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void dfs(int now)
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{
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if (now == n)
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{
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for (int i = 1; i <= n; ++i)
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{
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if (c & (1 << i))
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printf("%d ", i);
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}
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puts("");
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return;
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}
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dfs(now + 1);
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c &= (1 << now);
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dfs(now + 1);
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}
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int main()
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{
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scanf("%d", &n);
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dfs(1);
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return 0;
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} |