kanna5 58527849b2 add new solutions		2025-12-23 19:00:11 +09:00
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q15	add new solutions	2025-12-23 19:00:11 +09:00
q20	add new solutions	2025-12-23 19:00:11 +09:00
q36	restructure solutions dir	2025-12-23 18:39:11 +09:00