Project Euler #174: Counting the number of "hollow" square laminae that can form one, two, three, ... distinct arrangements.

Hacker
Rank
Score
01
flag of China
100.00
02
flag of United States
100.00
03
flag of France
100.00
04
flag of Vietnam
100.00
05
flag of Viet Nam
100.00
06
flag of Ukraine
100.00
07
flag of United Kingdom
100.00
08
flag of Russian Federation
100.00
09
flag of Western Sahara
100.00
10
flag of China
100.00
11
flag of Canada
100.00
12
flag of France
100.00
13
flag of Ukraine
100.00
14
flag of United States
100.00
15
flag of Bangladesh
100.00
16
flag of Singapore
100.00
17
flag of United States
100.00
19
flag of Indonesia
100.00
20
flag of India
100.00
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