To construct a pyramid of numbers

Description:

                  In this program the we have to construct output in the pyramid shape manner

Algorithm:

         Step 1: Start

         Step2: initialize the num,I,y, x=35

         Step3: read the num

         Step4:perform the loop operation

                     For(y=0;y<=num;y++)

         Step5:Gotoxy(x,y+1)

         Step6: perform the loop operation for displaying digits towards the left and right

                      For(i=0-y;i<=y;i++)

         Step7: print abs(i);

         Step8: x=x-2;

         Step9: Stop

  Program:

#include<stdio.h>

#include<conio.h>

void main()

{

            int num,i,y,x=35;

 clrscr();

 printf("\nEnter the number to generate the pyramid:\n");

 scanf("%d",&num);

 for(y=0;y<=num;y++)

 {

  /*(x-coordinate,y-coordinate)*/

                         gotoxy(x,y+1);

                         /*for displaying digits towards the left and right of zero*/

  for(i=0-y;i<=y;i++)

                        printf("%3d",abs(i));

  x=x-3;

 }

 getch();

}

Output:

                                                             

1.enter the number:              0

4                                        1 0 1

                                       2 1 0 1 2

                                    3 2 1 0 1 2 3

                                 4 3 2 1 0 1 2 3 4

2.enter the number:                 0

   3                                        1 0 1

                                          2 1 0 1 2

                                      3 2 1 0 1 2 3

Conclusion: The program is error free

VIVA QUESATIONS:

1)      What is the use of dot operator in structures ?

Ans: The use of dot(.) operator to access the members of a structure independently. The dot operator connects a member with the structure variable.

2)      Define unions ?

Ans: A union is a data type in c which allows the overlay of more than one variable in the same memory area.