Ugly numbers are numbers whose only prime factors are 2, 3 or 5. The sequence
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, ...
shows the first 11 ugly numbers.
By convention, 1 is included.

Write a program to find and print the 1500'th ugly number.

Write a C program which when compiled and run, prints out a message
indicating whether the compiler that it is compiled with, allows /* */
comments to nest.

int main()
{
        int i, n = 20;
        for (i = 0; i < n; i--)
                printf("*");
        return 0;
}

Change/add only one character and print '*' exactly 20 times.
(there are atleast 3 solutions to this problem :-)

You are given have a datatype, say X in C.

The requirement is to get the size of the datatype, without declaring a
variable or a pointer variable of that type,

And, of course without using sizeof operator !

Given a singly-linked, find out the mid point of a single linked list in a
single parse of the list. Assume the program would be loaded in read-only
memory so no manipulation of the list is allowed.