pascalTriangle

/*package whatever //do not write package name here */

import java.io.*;
import java.util.*;

class GFG {
	public static void main (String[] args) {
		System.out.println("Enter the number of the line ");
		Scanner sc=new Scanner(System.in);
		int line=sc.nextInt();
		pascal(line);
	}
	static int fact(int num){
	    int f=1;
	    for(int i=1;i<=num;i++){
	        f*=i;
	    }
	    return f;
	}
	static int combi(int n, int r){
	    int com=fact(n)/(fact(r)*fact(n-r));
	    return com;
	}
	static void pascal(int line){
	    
	    for(int i=1;i<=line;i++){
	        int k=1;
	        int r=0;
	        for(int j=1;j<line*2;j++){
	            if(j>=line-i+1 && j<=line+i-1 && k==1){
	                System.out.print(combi(i-1,r));
	                k=0;
	                r++;
	            }
	            else{
	                System.out.print(" ");
	                k=1;
	            }
	            
	        }
	        System.out.print("\n");
	    }
	}
}