C Program for printing the Pascal Triangle up to given number of rows.

What is Pascal Triangle?

In simple, Pascal Triangle is a Triangle form which, each number is the sum of immediate top row near by numbers. The Value of edge is always 1.

# include

int main()

{

int rows, cal = 1, space, i, j;

```
printf("Enter number of rows: ");//enter number of rows for generating the pascal triangle
scanf("%d",&rows);
for(i=0; i<rows; i++) // outer loop for displaying rows
{
for(space=1; space <= rows-i; space++) // space for every row starting
printf(" ");
for(j=0; j <= i; j++) // inner loop for displaying the pascal triangle of numbers
{
if (j==0 || i==0) // either outer loop value or inner-loop value is "0 " it prints 1
cal = 1;
else
cal = cal*(i-j+1)/j; //calculate the coefficient
printf("%4d", cal);
}
printf("\n");
}
return 0;
```

}

OUTPUT for PASCAL Triangle

Enter number of rows: 5 1 1 1 1 2 1 1 3 3 1 1 4 6 4 1