## 9.03.2011

### 18. Design numbers tringle pyramid

Q. Write a program to generate a following numbers triangle:(Where user entered number through keyboard, for example if num=5)

 1 2 3 4 5 4 3 2 1 1 2 3 4 3 2 1 1 2 3 2 1 1 2 1 1

Ans.
/*c program for number triangle pyramid*/

#include<stdio.h>
#include<conio.h>
int main()
{
int num,r=1,c,sp,x;
printf("Enter loop repeat number(rows):");
scanf("%d",&num);
for(; num>=1; num--,r++)
{
for(sp=r; sp>1; sp--)
printf(" ");
for(c=1; c<=num; c++)
printf("%d",c);
for(x=num-1; x>=1; x--)
printf("%d",x);
printf("\n");
}
getch();
return 0;
}
/****************OUTPUT************
Enter loop repeat number(rows): 5

 1 2 3 4 5 4 3 2 1 1 2 3 4 3 2 1 1 2 3 2 1 1 2 1 1

************************************/

1. wasnt useful at all!!!

2. what is the use of x variable?

3. the program wasnt useful...

#
#
void main()
{
int n,r,c,x,s;
clrscr();
printf("enter loop repeat number");
scanf("%d",&n);
for(r=1;r<=n;r++)
{
for(s=r;s>=1;s--)
printf(" ");
for(c=1;c<=n-r+1;c++)
printf("%d",c);
for(x=n-r;x>=1;x--);
printf("%d",x);
printf("\n");
}
getch();
}

4. thanks a lot buddy