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  1. Prepare
  2. Regex
  3. Assertions
  4. Negative Lookahead
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Negative Lookahead

Hacker
Rank
Score
eric_omine
01
flag of Brazil
20.00
ouahibelhanchi
01
flag of Morocco
20.00
Paul_Kijtapart
01
flag of Canada
20.00
davemarm
01
flag of United States
20.00
jboelter
01
flag of United States
20.00
iprando
01
flag of Brazil
20.00
acrt3820
01
flag of Taiwan
20.00
TrinhTrungDung
01
flag of Vietnam
20.00
olier1
01
flag of Poland
20.00
giovannisfois
01
flag of Italy
20.00
charlesoo
01
flag of United States
20.00
NicolasBi
01
flag of France
20.00
alarson1
01
flag of United States
20.00
chukrum47
01
flag of United States
20.00
_o_o_
01
flag of Poland
20.00
DaleSeo
01
flag of Canada
20.00
AKrutikov
01
flag of Russian Federation
20.00
szikszail
01
flag of Hungary
20.00
usonnino
01
flag of France
20.00
wx_yao
01
flag of China
20.00
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