Are there any other sources of programming type riddles on the internet?
I started my set of daily programming riddles, jokes, and quotes partly to help myself and my team grown in some technical areas... like new .NET 3.5 features, design patterns, anti-patterns, code smells, etc.
I would love to find other short programming riddles on the web, but I haven't ran across any yet. Do any of you know any, or would you consider starting to make your own?
I'm fond of http://projecteuler.net/
Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve. Although mathematics will help you arrive at elegant and efficient methods, the use of a computer and programming skills will be required to solve most problems.
Some problems are insidiously difficult, but incredibly rewarding.
Code Kata is in my recent bookmarks.
There is also a good selection of programming puzzle books out there:
...among others.
While they are not programming puzzles, To Mock a Mockingbird does contain some really good logic puzzles that are beneficial to developers. I was recommended this book by another developer.
insecure programming by example
a not too tricky excerpt: this is an arbitrary code execution vulnerability. task: 0wn it.
/* n1.c *
* specially crafted to feed your brain by [email protected] */
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#define MAX_SIZE 80
unsigned int atoul(char *str) {
unsigned int answer=0;
for (;*str && isdigit(*str);
answer *= 10, answer += *str++-'0');
return answer;
}
int main(int argv, char **argc) {
char buf[MAX_SIZE],*pbuf=buf;
int count = atoul(argc[1]);
if (count >= MAX_SIZE) count = MAX_SIZE-1;
while (count--) *pbuf++=getchar();
*pbuf=0;
}
Hava a look at http://scarky.com you can find some riddles there and even post your own