Reverse a doubly linked list

Hacker
Rank
Score
9624
flag of Hong Kong
00.00
9624
flag of United States
00.00
9624
flag of India
00.00
9624
flag of United States
00.00
9624
flag of India
00.00
9624
flag of United States
00.00
9624
flag of Australia
00.00
9624
flag of India
00.00
9624
flag of Indonesia
00.00
9624
flag of United States
00.00
9624
flag of Canada
00.00
9624
flag of United Kingdom
00.00
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