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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
danielkun
01
flag of Italy
30.00
dijoo974
01
flag of France
30.00
sngrekov
01
flag of Russian Federation
30.00
bindankumarms
01
flag of India
30.00
umriyaev
01
flag of Netherlands
30.00
balrajsingh9
01
flag of Denmark
30.00
TheCream
01
flag of United States
30.00
gkuzmenko
01
flag of Russian Federation
30.00
anhtrantuan
01
flag of Viet Nam
30.00
mthrok
01
flag of Japan
30.00
joseph_woodworth
01
flag of United States
30.00
kumreddy91
01
flag of United States
30.00
WillRoque
01
flag of Brazil
30.00
arctenex
01
flag of United States
30.00
stevensona
01
flag of United States
30.00
thirstyClouds
01
flag of India
30.00
teehill
01
flag of United States
30.00
elikpr86
01
flag of Republic of Korea
30.00
gaurav_khanduja
01
flag of United States
30.00
akki744
01
flag of India
30.00
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