Programing Puzzles

[Wyverex]

just some fun little programming puzzles I found around online...



Write a "Hello World" program in 'C' without using a semicolon.
(Note: #include in C doesn't need a semicolon but import does)



Problem #1 Write a "Hello World" program in D with only a semicolon on 
import statement.

Problem #2 Test if an int is even or odd without looping or if statement 
(Cant use: do, while, for, foreach, if).

Problem #3 Write a program without using any loop (if, for, while etc) 
to print numbers from 1 to 100 and 100 to 1;

Problem #4 Find if the given number is a power of 2.



Post Solutions to this root, comments to someones solution in that thread.