Answer Posted / sagarsp2010

#include<stdio.h>
#include<conio.h>
void main()
{
int i,j,k,n;
clrscr();

printf("\nEnter the No. :");
scanf("%d",&n);

for(i=1;i<=n-1;i++)
{
for(j=n-1;j>=i;j--)
{
if(i==j)
printf(" *");
else
printf(" ");
}
for(j=1;j<=n;j++)
{
if(i==j && i!=1 && i!=(n-(n-1)))
printf("*");
else if(j==2 || i==2)
printf(" ");
else
printf(" ");
}
printf("\n");
}
for(i=1;i<=n+1;i++)
{
for(j=1;j<=n;j++)
{
if(i==j)
printf("*");
else
printf(" ");
}
for(j=n-1;j>=i;j--)
{
if(i==j)
printf("*");
else
printf(" ");
}
printf("\n");
}
getch();
}

How to write a code for implementing my own printf() and scanf().... Please hep me in this... I need a guidance... Can you give an coding for c... Please also explain about the header files used other than #include...

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