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  2. Regex
  3. Assertions
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Negative Lookahead

Hacker
Rank
Score
glen_edmonds
01
flag of Australia
20.00
elifguler
01
flag of Turkey
20.00
guillermosipe
01
flag of Mexico
20.00
mmaki
01
flag of Serbia
20.00
avinashpmore
01
flag of United States
20.00
UoA_ZQC
01
flag of New Zealand
20.00
kemisprite
01
flag of Singapore
20.00
orlenko
01
flag of United Kingdom
20.00
Toonces1980
01
flag of United States
20.00
marcohern
01
flag of Colombia
20.00
aepari14
01
flag of India
20.00
luhao41
01
flag of China
20.00
chinwe
01
flag of China
20.00
punit_bhakar
01
flag of India
20.00
sowmi_wow
01
flag of India
20.00
parkyoung555
01
flag of United States
20.00
PoChen
01
flag of Australia
20.00
HelloYujie
01
flag of China
20.00
randr
01
flag of Germany
20.00
b504008585
01
flag of China
20.00
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