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  1. Prepare
  2. Tutorials
  3. 30 Days of Code
  4. Day 19: Interfaces
  5. Leaderboard

Day 19: Interfaces

Hacker
Rank
Score
markmavromatis
01
flag of United States
30.00
shafaq_m
01
flag of Pakistan
30.00
NIFR91
01
flag of Mexico
30.00
Aleksej_P
01
flag of Germany
30.00
JennaYorks
01
flag of United States
30.00
mnikitin
01
flag of Russian Federation
30.00
paullouis
01
flag of France
30.00
97v_varun
01
flag of India
30.00
Sanlimyok
01
flag of United Kingdom
30.00
Void_Overflow
01
flag of United States
30.00
ryshackleton
01
flag of United States
30.00
grodthehippy
01
flag of United States
30.00
alexmed
01
flag of Ukraine
30.00
DrCruel
01
flag of United States
30.00
nickypy
01
flag of United States
30.00
biddoof
01
flag of United States
30.00
sks_sien
01
flag of Malaysia
30.00
rakeshkapri
01
flag of India
30.00
samiraA
01
flag of United States
30.00
xiaoluo
01
flag of China
30.00
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