kwong – Page 42 – Kerry D. Wong

Generating Unique Permutations Programmatically

Download UniquePermutation.zip The numbers of permutations on a set of n elements is n! (see definition).

If you are looking for a programming position, chances are that you will be required to have x years of […]

Download Trie.zip Trie is a tree like data structure that can be used for fast text search.

We were supposed to have a winter storm last Thursday. But as it turned out, we just had some light […]

In my post a week ago, I mentioned three ways to reverse a string. OK, I really meant three alternative […]

In my previous post “How to Tab Through Controls on a Form With Alternative Keys using C#” I talked about […]

OK, conceptually, it’s quite easy. A couple of my friends got asked this question when interviewing. Here are what my […]

Download RegExpBench.zip I created this little utility a while ago. It is a work bench for creating/validating regular expressions.

Download AltTab.zip We have taken it for granted that TAB and SHIFT + TAB move the focus from one control […]

I got an iWay 350c portable GPS a little more than a month ago.

Most of the people would definitely say Googlebot without hesitation, but my recent observations seem to suggest otherwise.

Download ColorPicker.zip I put this ColorPicker up for download about a year ago. Recently, I have updated it (some minor […]

In case you don’t know, today is the Chinese lunar New Year.

OK, I had lots of thoughts on how to improve my own websites, but reality finally kicked in and I […]

Any good things can become bad when overused, and Code Generator is one such example.