Answer Posted / rfk

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

}

compiled with GCC

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