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  1. Prepare
  2. Java
  3. Strings
  4. Valid Username Regular Expression
  5. Leaderboard

Valid Username Regular Expression

Hacker
Rank
Score
dharshuvijayaku1
149994
flag of India
00.00
paviroopa2003
149994
flag of India
00.00
Smit10
149994
flag of India
00.00
meatri1994
149994
flag of India
00.00
sarges3
149994
flag of United States
00.00
gman007
149994
flag of United States
00.00
sudheesh001
149994
flag of United States
00.00
dinesh_majeti
149994
flag of United States
00.00
jvm_biter
149994
flag of Bangladesh
00.00
gsaikrishna28
149994
flag of United States
00.00
piyushpcegarg
149994
flag of India
00.00
abbasshah17
149994
flag of Pakistan
00.00
nitin_bhasin10
149994
flag of India
00.00
shefali18
149994
flag of India
00.00
sahithithandra
149994
flag of Canada
00.00
abhijeet_saxena7
149994
flag of India
00.00
tank_777
149994
flag of India
00.00
Avi15
149994
flag of India
00.00
Roshanware
149994
flag of India
00.00
Pratyush_Sharma
149994
flag of India
00.00
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