C :

#include<stdio.h>
int a[36][36];
int main()
{
    int n;
    scanf("%d",&n);
    int i,j;
    a[1][1]=1;
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=i;j++)
        {
            if(1==j || j==i)
            {
                a[i][j]=1;
                printf("%d",a[i][j]);
            }
            else
            {
                a[i][j]=a[i-1][j]+a[i-1][j-1];
                printf("%d",a[i][j]);
            }
            putchar(' ');
        }
        puts("");
    }
    return 0;
}

C++ :

#include<iostream>
using namespace std;
#define N   50
int a[N][N] = {(0,1)};
int main()
{
    int n;
    cin>>n;
    for(int i = 1; i <= n; i++)
    {
        for(int j =1; j <= i; j++)
        {
            a[i][j] = a[i-1][j-1] + a[i-1][j];
            cout<<a[i][j]<<' ';
        }
        cout<<endl;
    }
    return 0;
}

Java :

import java.util.Scanner;  
public class Main {  
    public static void main(String[] args) {  
          
        Scanner scanner=new Scanner(System.in);  
        int n=scanner.nextInt()+1;  
        int[][] array=new int[n][n];  
        for(int i=0;i< n; i++){  
            array[i][1]=1;  
            array[i][i]=1;  
        }  
        for(int j=2;j<n;j++){  
            for(int k = 2;k < n;k++){  
                array[j][k]=array[j-1][k]+array[j-1][k-1];  
            }  
        }  
        for (int i = 1; i < array.length; i++) {  
            for (int j = 1; j < array.length; j++) {  
                if(array[i][j]>0){  
                    System.out.print(array[i][j]+" ");                    
                }  
            }  
            System.out.println();  
        }  
    }  
      
}