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Prepare
Tutorials
30 Days of Code
Day 19: Interfaces
Leaderboard
Day 19: Interfaces
Problem
Submissions
Leaderboard
Discussions
Editorial
Tutorial
Reveal solutions
Hacker
Rank
Country
Score
_journeyMan
01
30.00
eniv230862
01
30.00
andretan
01
30.00
lhuang89
01
30.00
fbleibel
01
30.00
shashikirang
01
30.00
odie1111
01
30.00
lsitarz
01
30.00
asnadya
01
30.00
feldoh10
01
30.00
siddharthpathak7
01
30.00
cashkl
01
30.00
WhiteDragon
01
30.00
bscruzpt
01
30.00
mayurisingh13
01
30.00
benayapaul
01
30.00
fokos89
01
30.00
thiagohmoreira
01
30.00
ZannT
01
30.00
davidme_10
01
30.00
1
...
16
17
18
...
8044
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