C pattern

o/p
5
1
3*2
4*5*6
10*9*8*7
11*12*13*14*15






#include ”stdio.h”
int main()
{
int i, j, k, l=1, N, d, r, count=0;
scanf(“%d”, &N);
for(i=1; i<=N; i++)
{
k=1;
d=i%2;
r=l+i-1;
for(j=0;j<i;j++)
{
if(d==0)
{
printf(“%d”,r);
r–;
if(k<i)
{
printf(“*”);
k=k+1;
}
l++;
continue;
}
printf(“%d”,l);
l++;
if(k<i)
{
printf(“*”);
k=k+1;
}
}
printf(“\n”);
}
return 0;