I can unterstand what is wrong with my code
import java.util.;
public class Main {
public static int fact(int n){
if(n==0)
return 1;
else{
int c=fact(n-1);
int m=nc;
return m;
}
}
public static int comb(int n,int r){
int p=(fact(n)/fact(n-r))/fact®;
return p;
}
public static void printt(int n ){
int i,j,k;
int r=0;
for(i=1;i<=n;i++){
k=1;
for(j=1;j<=2*n-1;j++){
if(j>=n+1-i && j<=n-1+1 &&k==1){
System.out.print(comb(i-1,r));
k=0;
r++;
}
else{
System.out.print(" ");
k=1;
}}
}
System.out.println();
}
public static void main(String args[]) {
try{
Scanner sc=new Scanner(System.in);
int n=sc.nextInt();
printt(n);
}
catch(Exception e){System.out.println(e);}
}
}