Ronald Stevanus

@ronald29

Indonesia

Joined Jul 2004

World Rank: #26893 (1 points)

Activity over the last year

Effectiveness

 Problems solved
6
 Solutions submitted
124

Problems

List of solved classical problems:

ADDREV
FCTRL
FCTRL2
ONP
PRIME1
TEST

TODO list of classical problems:

COINS
SBSTR1