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Hannes Karppila's user avatar
Hannes Karppila's user avatar
Hannes Karppila's user avatar
Hannes Karppila
  • Member for 10 years, 2 months
  • Last seen more than 2 years ago
  • Finland
108 votes
40 answers
12k views

A simple TCP server

34 votes
58 answers
5k views

Calculate average characters of string

21 votes
29 answers
2k views

Reverse the truth

20 votes
1 answer
1k views

Bootloader golf: Brainf***

18 votes
5 answers
1k views

Fill the holes in letters

17 votes
8 answers
2k views

Output 2015 as QR code

15 votes
18 answers
4k views

Invert png image

12 votes
0 answers
1k views

QR code decoder [closed]

-6 votes
4 answers
1k views

Print "Hello World" in Ascii Art ... without its characters [closed]

-6 votes
2 answers
567 views

Implement slow sorting algorithm [duplicate]