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Cod sursa(job #650460)
#include<iostream>
#include<cstdio>
using namespace std;
int n,p,st[10000];
void tipar(int k)
{
int i;
for(i=1;i<=k;i++)
printf("%d ",st[i]);
printf("\n");
}
int valid(int k)
{
int ev=1;
for(int i=1;i<k;i++)
if(st[k]<=st[i])
ev=0;
return ev;
}
void back(int k)
{
int x;
for(x=1;x<=n;x++)
{
st[k]=x;
if(valid(k))
if(k==p) tipar(k);
else
if(k<n) back(k+1);
}
}
int main()
{
freopen("combinari.in","r",stdin);
freopen("combinari.out","w",stdout);
scanf("%d%d",&n,&p);
back(1);
return 0;
}