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Cod sursa(job #206842)
/*dusman*/
#include<fstream.h>
int n,sol[1005],mu,z,m[1003][5],x,y,ok;
ifstream fin("dusman.in");
ofstream fout("dusman.out");
void afiseaza()
{
int i;
for(i=0;i<n;i++)
fout<<sol[i]<<" ";
fout<<'\n';
}
int valid(int k)
{
int i;
if(k>0)
{
for(i=1;i<=m[sol[k]][m[sol[k]][0]];i++)
if(m[sol[k]][i]==sol[k-1])
return 0;
}
for(i=0;i<k;i++)
if(sol[i]==sol[k])
return 0;
return 1;
}
void back(int k)
{
int i;
for(i=1;i<=n&&ok==0;i++)
{
sol[k]=i;
if(valid(k)==1)
if(k==n-1)
{
z--;
if(z==0)
{ afiseaza();ok=1;}
}
else back(k+1);
}
}
int main()
{
int i;
fin>>n>>z>>mu;
for(i=0;i<mu;i++)
{
fin>>x>>y;
m[x][++m[x][0]]=y;
m[y][++m[y][0]]=x;
}
back(0);
fout.close();
return 0;
}