Answer Posted / vignesh1988i

#include<stdio.h>
#include<conio.h>
void main()
{
int n;
printf("enter the lines :");
scanf("%d",&n);
for(int i=1;i<=n/2;i++)
{
printf("*\n");
for(int j=1;j<=2*i;j++)
printf("%d",j);
printf("\n");
}
if(n%2!=0)
printf("\n*");
getch();
}

thank u

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