Java Singleton Pattern

Hacker
Rank
Score
77443
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77443
flag of India
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77443
flag of United States
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77443
flag of India
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77443
flag of India
00.00
77443
flag of United States
00.00
77443
flag of India
00.00
77443
flag of India
00.00
77443
flag of India
00.00
77443
flag of Vietnam
00.00
77443
flag of India
00.00
77443
flag of United States
00.00
77443
flag of Pakistan
00.00
77443
flag of United States
00.00
77443
flag of United States
00.00
77443
flag of United States
00.00
77443
flag of India
00.00
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