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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
dchaushev
01
flag of Bulgaria
30.00
exxenos
01
flag of Russian Federation
30.00
Hooware
01
flag of Turkey
30.00
praveen_4618
01
flag of India
30.00
Preeti05
01
flag of India
30.00
sagarchoudhary96
01
flag of India
30.00
david4122
01
flag of Denmark
30.00
madi9k
01
flag of Hungary
30.00
markitosha
01
flag of Russian Federation
30.00
nirij
01
flag of United States
30.00
s_a_n_k_a_r_a_n
01
flag of United Kingdom
30.00
gcheney
01
flag of United States
30.00
nuraga10
01
flag of Kazakhstan
30.00
sdecankit
01
flag of United States
30.00
LetterRip
01
flag of United States
30.00
s4980
01
flag of Ireland
30.00
z01db3rg
01
flag of Germany
30.00
stephencernota
01
flag of United States
30.00
TuckerCross
01
flag of United States
30.00
kwzhang
01
flag of Korea, Republic of
30.00
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