Bill Black

@bilblak

United States

Joined Jul 2009

World Rank: #47529 (0.4 points)

Activity over the last year

Effectiveness

 Problems solved
11
 Solutions submitted
31

Problems

List of solved classical problems:

ACPC10A PRIME1
ACPC10B STPAR
ADDREV TEST
CANTON TOANDFRO
FASHION
NSTEPS
PERMUT2

TODO list of classical problems:

ARMY
NSYSTEM