## 12.09.2012

### Number Pryamid By Function

Q. Write a C program to print the following triangle using function.

1
2 3
4 5 6
7 8 9 1
2 3 4 5 6

Ans.

/*C program for number pyramid using function*/
#include<stdio.h>
void pyramid(int );
int main()
{
int num;
printf("Enter the number of rows : ");
scanf("%d", &num);
pyramid(num);
return 0;
}

void pyramid(int n)
{
int r,c,x=1,y=1;
for(r=1; r<=n; r++)
{
for(c=1; c<=r; c++,x++)
{
if(x<=9)
printf(" %d",x);
else
{
printf(" %d",y);
y++;
}
}
printf("\n");
}
}

The output of above program would be:

 Figure: Screen shot for number pyramidusing function C program

1. This Program is Wrong.

1. @Jitendra,
What you find an error in above program? Write Down here?

2. The Correct Program is :

#include
void pyramid(int );
int main()
{
int num;
printf("Enter the number of rows : ");
scanf("%d", &num);
pyramid(num);
return 0;
}

void pyramid(int n)
{
int r,c,x=1;
for(r=1; r<=n; r++)
{
for(c=1; c<=r; c++,x++)
{
if(x<=9)
printf(" %d",x);
else
{
x=1;
printf(" %d",x);
}
}
printf("\n");
}
getch();
}

1. @Jitendra,
What is difference my and your program?
You copy above program and paste in comment session?

Plz write any comment if you have a real problem!!