nogami2026hardness (251B)
1 # nogami2026hardness 2 3 shows [lower_bounds] on 4 - [regular_expression_squaring] 5 - [regular_expression_backreferences] 6 - [regular_expression_intersection] 7 - [regular_expression_complement] 8 9 Up: [academic_paper], [regular_expression_extensions_matching]