True Square in a Binary Matrix

Hacker
Rank
Score
Time
01
flag of Japan
49.232
29:47
02
flag of Luxembourg
49.232
48:32
03
flag of Ukraine
49.232
50:33
04
flag of Russian Federation
49.232
52:36
05
flag of India
43.08
11:36
06
flag of India
43.08
26:39
07
flag of India
43.08
32:55
08
flag of India
43.08
40:12
09
flag of India
43.08
44:12
10
flag of United Kingdom
43.08
47:53
11
flag of Vietnam
43.08
55:16
12
flag of India
36.92
30:35
13
flag of Romania
36.92
43:04
14
flag of India
30.768
47:00
15
flag of India
30.768
47:59
16
flag of India
30.768
48:22
17
flag of Kazakhstan
30.768
48:25
18
flag of United Kingdom
30.768
49:03
19
flag of India
30.768
49:32
20
flag of India
30.768
49:50
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