20 lines
486 B
C++
20 lines
486 B
C++
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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, i;
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cin >> n;
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int a[n];
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//输入数据
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for (i = 0; i < n; i++)
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cin >> a[i];
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//而STL中有两个函数，分别是 prev_permutation 和 next_permutation.
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//它们是现成的求上一个和下一个字典序的序列的。
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prev_permutation(a, a + n);//求上一个全排列
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//输出
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for (i = 0; i < n; i++)
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cout << a[i] << " ";
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return 0;
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}
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