Created
August 31, 2019 05:59
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#include <vector> | |
#include <iostream> | |
#include <algorithm> | |
using namespace std; | |
int n, m; | |
bool visit[9]; | |
vector<int> num; | |
void go(int idx, int maxcnt, vector<int> v) { | |
if (maxcnt == m) { | |
for (int i = 0; i < v.size(); i++) { | |
cout << v[i] << ' '; | |
} | |
cout << '\n'; | |
return; | |
} | |
for (int i = 0; i < n; i++) { | |
v.push_back(num[i]); | |
go(i, maxcnt + 1, v); | |
v.pop_back(); | |
} | |
return; | |
} | |
int main(void) { | |
ios_base::sync_with_stdio(false); | |
cin.tie(nullptr); | |
cin >> n >> m; | |
num.resize(n); | |
for (int i = 0; i < n; i++) { | |
cin >> num[i]; | |
} | |
sort(num.begin(), num.end()); | |
go(0, 0, vector<int>()); | |
return 0; | |
} |
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