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dan04's user avatar
dan04's user avatar
dan04
  • Member for 13 years, 2 months
  • Last seen more than a month ago
  • Houston, TX
65 votes
20 answers
8k views

Hash collision: "NO" means "YES"

49 votes
13 answers
12k views

“Disprove” Fermat's Last Theorem [closed]

40 votes
2 answers
2k views

Musical Tweet Challenge

40 votes
17 answers
4k views

Golf a mutual quine

37 votes
18 answers
3k views

Count rotary dial pulses in a phone number (including letters)

32 votes
8 answers
4k views

It's not who votes that counts; it's who counts the votes [closed]

31 votes
23 answers
5k views

Increment a GUID

29 votes
2 answers
3k views

Underhanded code contest: Not-so-quick sort [closed]

24 votes
10 answers
2k views

Calculate a tip using the smallest number of coins

22 votes
3 answers
1k views

The Star-Spangled Code Challenge

17 votes
7 answers
1k views

Decimal “XOR” operator

12 votes
3 answers
615 views

Festival of ASCII-art lights

11 votes
1 answer
580 views

Resize rasterized text and make it look non-pixellated

7 votes
2 answers
413 views

Roman-style date formatting

7 votes
2 answers
540 views

Write a better BCS computer ranking

6 votes
3 answers
369 views

Shana tova umetuka! (Happy Jewish New Year!)