25 lines
437 B
C++
25 lines
437 B
C++
#include <bits/stdc++.h>
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using namespace std;
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int n;
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vector<int> vec;
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void dfs(int x) {
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if (x == 0) {
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for (int i = 0; i < vec.size(); i++)
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cout << vec[i] << " ";
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cout << endl;
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return;
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}
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// 当前位置可以放下每个小于等于x的数字
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for (int i = 1; i <= x; i++) {
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vec.push_back(i);
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dfs(x - i);
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vec.pop_back();
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}
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}
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int main() {
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cin >> n;
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dfs(n);
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return 0;
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} |