This document contains code for two C programs. The first constructs a pyramid of numbers by printing digits centered around zero on successive lines, moving the pyramid to the left on each line. The second generates Pascal's triangle by calculating binomial coefficients and printing them in a triangular formation with spaces for padding. Both programs take user input, perform calculations in loops, and output the resulting patterns to the console.

1. /* Write a C program to construct a pyramid of numbers. */
#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();

2. }
/* Write a C program to generate Pascal's triangle. */
#include<stdio.h>
#include<conio.h>
void main()
{
int bin,p,q,r,x;
clrscr();
bin=1;
q=0;
printf("Rows you want to input:");
scanf("%d",&r);
printf("nPascal's Triangle:n");
while(q<r)
{
for(p=40-3*q;p>0;--p)
printf(" ");
for(x=0;x<=q;++x)
{

3. if((x==0)||(q==0))
bin=1;
else
bin=(bin*(q-x+1))/x;
printf("%6d",bin);
}
printf("n");
++q;
}
getch();
}