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Cod sursa(job #395609)
#include <algorithm>
#include <bitset>
using namespace std;
#define DIM (1<<10)
int N, K, M;
int b[ DIM ], d[ DIM ][ DIM ];
bitset <DIM> f;
inline void back( const int &k ) {
int i;
if( !K )
return;
if( k == N+1 ) {
if( --K == 0 )
for( i = 1; i <= N; ++i )
printf( "%d ", b[ i ] );
return;
}
for( i = 1; i <= N; ++i )
if( !f[ i ] && !d[ b[ k-1 ] ][ i ] ) {
b[ k ] = i;
f[ i ] = 1;
back( k+1 );
f[ i ] = 0;
}
}
int main() {
freopen( "dusman.in", "r", stdin );
freopen( "dusman.out", "w", stdout );
int i, x, y;
scanf( "%d %d %d", &N, &K, &M );
for( i = 0; i < M; ++i ) {
scanf( "%d %d", &x, &y );
d[ x ][ y ] = 1;
d[ y ][ x ] = 1;
}
back( 1 );
return 0;
}