题意：卡特兰数+n！

java！

1 import java.math.BigInteger; 2 import java.util.*; 3  4 public class HDU1131{ 5     public static void main( String args[] ){ 6         int n; 7         Scanner cin=new Scanner(System.in); 8         BigInteger h[]=new BigInteger[ 105 ]; 9         h[ 0 ]=h[ 1 ]=BigInteger.ONE;10         for( int i=2;i<=100;i++ ){11             h[ i ]=BigInteger.ZERO;12             for( int j=0;j