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Prepare
Algorithms
Dynamic Programming
Black and White Tree
Leaderboard
Black and White Tree
Problem
Submissions
Leaderboard
Discussions
Editorial
Reveal solutions
Hacker
Rank
Country
Score
mchuang
1161
57.60
ffurmanek
1161
57.60
omykolai
1163
54.40
maxpushkarev
1164
51.20
orou0591
1165
48.00
mahpat
1165
48.00
omarahmedsaleeh
1165
48.00
muuang
1168
44.80
NickOlive
1168
44.80
aboelken
1170
41.60
crainone
1170
41.60
chrisleung01
1170
41.60
b_lusztak13
1170
41.60
OgAstorga
1174
35.20
mkawa222
1174
35.20
TheConvexHull
1174
35.20
mengxianglgal
1174
35.20
zemen
1178
32.00
f2013020
1178
32.00
arnab_
1178
32.00
1
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