C PROGRAM TO GENERATE PASCAL TRIANGLE AND PYRAMID OF NUMBERS

 

A)     Pascal triangle of numbers:

#include<stdio.h>

#include<conio.h> int main()

{

int rows,k=1,space,i,j; clrscr();

 

printf("\nEnter number of rows: "); scanf("%d",&rows); for(i=0;i<rows;i++)

{

for(space=1; space <= rows-i; space++) printf(" ");

for(j=0;j<=i;j++)

{

if(j == 0||i == 0) k=1;

else

k=k*(i-j+1)/j; printf("%4d",k);

}

printf("\n");

}

getch(); return 0;

}

 

Output:

Enter no. of rows: 6

 

1

1        1

1        2        1

1      3        3        1

1     4       6        4       1

1    5      10     10      5       1

B)                  Pyramid of numbers.

 

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

int main()

{

int rows,space,i,j; clrscr();

 

printf("\nEnter number of rows: ");// enter a number for generating the pyramid

 

scanf("%d",&rows);

 

for(i=0; i<rows; i++)          // outer loop for displaying rows

{

for(space=1; space <= rows-i; space++) // space for each and every element printf(" ");

 

for(j=0-i; j <= i; j++) //inner loop for displaying the pyramid of numbers

{

 

printf("%2d",abs(j)); // prints the value

 

}

printf("\n");          // every line in different row

}

getch();

return 0;

}

Output:

Enter no. of rows: 5

 

 

1

2 3   2

3 4 5   4   3

4 5 6 7   6   5   4

5 6 7 8 9   8   7   6 5