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#include <vector>
#include <iostream>
#include <algorithm>
#include <cstdlib>
#include <numeric>
int main( int argc, char * argv[] ) {
if ( argc < 3 ) {
std::cout << "Error! 2 integers expected!\n" ;
return 1 ;
}
int limit = std::atoi( argv[1] ) ;
int permu = std::atoi( argv[ 2 ] ) ;
std::vector<int> numbers( limit ) ;
std::iota( numbers.begin( ) , numbers.end( ) , 1 ) ;
std::vector<std::vector<int> > permutations ;
do {
permutations.push_back( numbers ) ;
} while ( std::next_permutation( numbers.begin( ) , numbers.end( )) ) ;
if ( permutations.size( ) < permu ) {
std::cout << "[]" << std::endl ;
}
else {
std::cout << "[ " ;
for ( int i : permutations[ permu - 1 ] ) {
std::cout << i << " " ;
}
std::cout << "]\n" ;
}
return 0 ;
}
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