C / C++ / MFC

#include <conio.h>
#include <stdio.h>

long int factorial(int num);

int main(){

	int row, col_1, col_2, i, j;
	long int k;

	printf("Enter the number of rows: \n");
	scanf("%d", &row);

	col_1 = row-2;
	
	for(i=0; i<=row-1; i++){

		for(j=0; j<=col_1; j++){
			printf(" ");
		}
		col_1--;

		for(col_2=0; col_2<=i; col_2++){

			k = factorial(i)/( factorial(i-col_2) * factorial(col_2) ) ;
			printf(" %ld ", k);
		}
		printf("\n");
	}

	return 0;
}

long int factorial(int num){

	int total, i;

	if(num==0 || num==1){
		total=1;

	}else{
		
		total = 1;
		for(i=1; i<=num; i++){

			total = total*num;
			num--;
		}
	}

    return total;
}