JungHwan Min's user avatar
JungHwan Min's user avatar
JungHwan Min's user avatar
JungHwan Min
  • Member for 6 years, 2 months
  • Last seen more than a week ago
  • Pittsburgh, PA, USA
24 votes
7 answers
939 views

Plant a binary forest!

21 votes
13 answers
1k views

LCM of Rational Numbers

21 votes
14 answers
2k views

Is this a truncated triangular number?

12 votes
1 answer
470 views

Demolish a string!

12 votes
14 answers
1k views

How many ways to write numbers as sums of squares?

11 votes
3 answers
945 views

Crazy but Rational Bases

6 votes
1 answer
117 views

Make the super number hyper-pyramid [duplicate]