March 2011 ~ Robert Gawron

Constructing a homemade microphone

in electronic engineering / with 22 comments /

To create a simple homemade microphone you need only a bunch of common electronic elements and a solder. Today I will present, how this microphone can be built at home. ...

How to sort numbers from STDIN

in programming, riddle / with 5 comments /

You get 10 numbers on STDIN, each followed by newline character, after that you have to display those numbers sorted from the smaller to the bigger. You cannot use sorting algorith...

The riddle of the stolen wood

in riddle / with 1 comment /

Sometimes piles of wood are marked by paint to protect them against thiefs. Continuous line is painted on the trees that are on the top of the pile, if one will steal some of them, then painted line on remaining stack will be discontinuous. To illustrate...

3 x if

in C and C plus plus, programming, riddle / with 3 comments /

Below snippets in C check if foo() and bar() returns nonzero value and execute something() if needed. Are they equivalent? Why? // first version if (foo() && bar()) { something(); } // second version if (bar() && foo()) { something(); } ...