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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
TipTop
01
30.00
subhacse2007
01
30.00
noahf
01
30.00
arunrm87
01
30.00
seraphki
01
30.00
jujubrain
01
30.00
anhacker
01
30.00
heykevinle
01
30.00
DanielleJude
01
30.00
hectorricardo
01
30.00
Lazaro9587
01
30.00
AryShared
01
30.00
pinigun
01
30.00
aoplesnin
01
30.00
sagnik_dhar
01
30.00
bronsonkong
01
30.00
omprakashgupta
01
30.00
earl_lapus
01
30.00
srosh
01
30.00
deepti48
01
30.00
1
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89
90
91
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7980
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