Reverse a doubly linked list

Hacker
Rank
Score
10157
flag of Tanzania, United Republic of
00.00
10157
flag of United States
00.00
10157
flag of Hong Kong
00.00
10157
flag of United States
00.00
10157
flag of India
00.00
10157
flag of United States
00.00
10157
flag of India
00.00
10157
flag of India
00.00
10157
flag of United States
00.00
10157
flag of Australia
00.00
10157
flag of India
00.00
10157
flag of Indonesia
00.00
10157
flag of United States
00.00
10157
flag of Canada
00.00
10157
flag of United Kingdom
00.00
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