Obama Fans
@obama
China
Joined Jan 2009
World Rank: #13952 (2.4 points)
Activity over the last year
Effectiveness
- Problems solved
- 63
- Solutions submitted
- 132
Problems
List of solved classical problems:
TODO list of classical problems:
| ADDREV | PARITY | PRIME1 | ||||
| BEADS | PIR |
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