Write Programming in C using pointer (Challenge for C programmer)?

1) write a program to compare two strings using pointer


2) write a program to print prime numbers between 1 to 500 using pointer


3) write a program to sort two dimensional string array using pointer

Write Programming in C using pointer (Challenge for C programmer)?
Asking people to do your homework is one thing, although you learn nothing from it, asking 4 times is just going too far.
Reply:it is difficult to fool people. No body wants to accept challenge of this type :-) hehehehehe


sorry, i am not laughing.
Reply:u should do ur homework by urself