Problem A
Matrix Keypad — Problem Statistics

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Submissions	14
Accepted submissions	7
Submission ratio	50.00%
Authors	5
Accepted authors	5
Author ratio	100.00%

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	C++	2018-03-15 18:00:07
2	Nils Gustafsson	0.00 s	C++	2018-03-15 18:19:04
3	Alexander Westberg-Bladh	0.01 s	C++	2018-03-15 18:51:12

#	User	Runtime	Language	Date
1	A Elric	0.11 s	Java	2020-11-30 04:07:34
2	Hidden user	0.27 s	Java	2020-02-27 16:36:28

#	User	Length	Language	Date
1	Hidden user	775	C++	2018-03-15 18:00:07
2	Nils Gustafsson	1823	C++	2018-03-15 18:19:04
3	Alexander Westberg-Bladh	2035	C++	2018-03-15 18:51:12

#	User	Length	Language	Date
1	Hidden user	2164	Java	2020-02-27 16:36:28
2	A Elric	2831	Java	2020-11-30 04:07:34

Solution running time distribution