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user80551
  • Member for 9 years, 2 months
  • Last seen more than a month ago
15 votes
7 answers
2k views

Calculate cell-phone keypresses

14 votes
16 answers
7k views

How much can you quickly multiply?

3 votes
4 answers
293 views

Line-wrap into proper columns

2 votes
0 answers
131 views

Cell-phone golf [duplicate]

0 votes
5 answers
403 views

highest common factor-fewest iterations [closed]