user80551's user avatar
user80551's user avatar
user80551's user avatar
user80551
  • Member for 10 years, 4 months
  • Last seen more than a month ago
15 votes
7 answers
2k views

Calculate cell-phone keypresses

14 votes
16 answers
8k views

How much can you quickly multiply?

3 votes
4 answers
297 views

Line-wrap into proper columns

2 votes
0 answers
131 views

Cell-phone golf [duplicate]

0 votes
5 answers
404 views

highest common factor-fewest iterations [closed]