Problems by Yosuke Mizutani

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Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Add or Multiply	0.10	1701	198	72	36%	7.6Hard	en
Airfare Grants	0.00	38	1710	1637	96%	1.4Easy	en
Emoticons	0.00	251	189	158	84%	4.6Medium	en
Scientific Grading	0.00	1173	125	32	26%	9.0Hard	en