Answer / aadhirai r

#include<stdio.h>
#include<conio.h>

void main()
{
int j=2,n,num,b[20],a[20];
a[0]=1; a[1]=2; a[2]=1;
clrscr();
printf("Enter the no of rows");
scanf("%d",&num);
printf(" 1\n");
printf(" 1 1\n");
printf(" 1 2 1\n");
while(j<=num)
{
int i=0;
b[0]=1;
for(n=1;n<=j;n++)
{
b[n]=a[i]+a[i+1];
i++;
}
b[n]=1;
gotoxy(15-(j),j+3);
for(i=0;i<=n;i++)
{
printf("%d ",b[i]);
a[i]=b[i];
}
j++;
}
getch();
}

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