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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
ranjith_965
01
30.00
Saltycows
01
30.00
marcoscarvalho
01
30.00
amercian
01
30.00
Nivedhitha_NV
01
30.00
girlcode11235
01
30.00
LostNomad311
01
30.00
andbmme
01
30.00
Igorka
01
30.00
Sparky47
01
30.00
jbecke19
01
30.00
Shwetz
01
30.00
LenaElika
01
30.00
cosmicfrog
01
30.00
gkaraffa
01
30.00
gkriukova
01
30.00
sr_normit
01
30.00
wal_lunch_time
01
30.00
nbpeth
01
30.00
fabricioac
01
30.00
1
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66
67
68
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7946
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