florin:
I am very new at programming. I want to understand what is wrong, but i can't. =(
That's the only mistake? As I turned off the LED-s? The circuit does not light at all, I put any frequency. Should not light up LEDs? =(ps: sorry for bad english.
There is one more mistake. The program is wrong. Just plain wrong. First steps is to read up on the basic syntax of C so that you can at least have a clue what you're doing.
Then, you need to properly define what it is you want to achieve.
From that you can break it down into a number of actual steps to achieve your goal.
You can then convert those steps into C code in the form of a program.
This is called Top Down Programming.
Wikipedia:
Top-down approaches emphasize planning and a complete understanding of the system. It is inherent that no coding can begin until a sufficient level of detail has been reached in the design of at least some part of the system.