Reverse a doubly linked list

Hacker
Rank
Score
2942
flag of India
80.00
2942
flag of United Kingdom
80.00
2942
flag of United States
80.00
2942
flag of India
80.00
2942
flag of India
80.00
2942
flag of Vietnam
80.00
2974
flag of United States
40.00
2975
flag of Viet Nam
00.00
2975
flag of Canada
00.00
2975
flag of Belarus
00.00
2975
flag of Canada
00.00
2975
flag of United States
00.00
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