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Cod sursa(job #254266)
#include <cstdio>
#include <vector>
#include <algorithm>
using namespace std;
const int MAX_N = 16;
int n, k;
vector<int> v;
bool valid(vector<int> &v) {
int mic[MAX_N], mare[MAX_N];
mic[1] = 0;
for (int i = 0; i < n; ++i)
for (int j = v[i] + 1; j <= n; ++j)
mic[j] = i;
mare[n] = n+1;
for (int i = n-1; i >= 0; --i)
for (int j = v[i] - 1; j; --j)
mare[j] = i;
for (int i = 1; i <= n; ++i)
if (mic[i] > mare[i])
return false;
return true;
}
int main() {
freopen("planeta.in", "r", stdin);
freopen("planeta.out", "w", stdout);
scanf("%d %d", &n, &k);
for (int i = 1; i <= n; ++i)
v.push_back(i);
int cnt = 0;
do {
if (valid(v)) ++cnt;
if (cnt == k) break;
} while (next_permutation(v.begin(), v.end()));
for (int i = 0; i < n; ++i)
printf("%d ", v[i]);
}