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π λ¬Έμ λ§ν¬
νκ² λλ²
βοΈ μμλ μκ°
2h
β¨ μλ μ½λ
1. λ¬Έμ ν΄μ
μΈ κ²½μ°,
μμ κ°μ΄ 5κ°μ§ κ²½μ°κ° κ°λ₯νλ―λ‘ 5λ₯Ό λ°νν©λλ€.
λ°°μ΄μ κΈΈμ΄κ°
n
μ΄λΌλ©΄ 2nκ°μ§ κ²½μ°μ μλ₯Ό κ³ λ €νμ¬ μ‘°κ±΄μ λ§μ‘±νλ κ²½μ°λ₯Ό μ°ΎμμΌ νλ―λ‘ μ΄λ₯Ό λ°νμΌλ‘ μ½λλ₯Ό ꡬννκ² μ΅λλ€.2. μλμ½λ
ν΅μ¬μΈ DFSλ λ€μκ³Ό κ°μ΅λλ€.
idxs_list
λglobal
μ μλ³μλ‘ λ λ€ μ¬κ·λ₯Ό ν΅νμ¬idxs_list
μ 차곑차곑 μΈλ±μ€λ€μ΄ μ½μ νλλ‘ νμμ΅λλ€.μ΄ λΆλΆ ꡬνμ΄ λ§μ΄ νλ€μ΄μ ννΈ λ° λ€λ₯Έ μ¬κ·ν¨μλ€μ λ§μ΄ μ°Έκ³ νμ¬ μμ±νμ΅λλ€..
μ¬κ· μ΄λ €μμ΅μ’ μ½λ
λ©μΈ ν¨μλ₯Ό 보μλ©΄
numbers
λ₯Ό μ°Έμ‘°ν λ 리μ€νΈ μ»΄ν리ν¨μ μ μ¬μ©νμμ΅λλ€.μ²μμλ μ무 μκ° μμ΄
μ λ°©λ²μΌλ‘
my_numbers
λ₯Ό μμ±νμμ§λ§ μ£Όμ μ°Έμ‘° λ°©μ λλ¬Έμmy_numbers
λ₯Ό μμ νλ©΄numbers
λ μμ λκΈ° λλ¬Έμ 리μ€νΈ μ»΄ν리ν¨μ μ ν΅ν΄ μλ‘μ΄ λ°°μ΄μ μμ±νμμ΅λλ€.νμ΄μ¬μμλ μμ 볡μ¬, κΉμ λ³΅μ¬ λ±μ κ°λ μΌλ‘ λ§μ΄ μλ €μ Έ μμ΅λλ€.
νμ΄μ¬ (Python) - κΉμ λ³΅μ¬ (Deep Copy)λ₯Ό μ°Έκ³ νμλ©΄ μμΈνκ² λ³΄μ€ μ μμ΅λλ€.
π μλ‘κ² μκ²λ λ΄μ©
DFSμ λν΄ μ‘°κΈ λ μ΄ν΄νκ² λκ³ νμ΄μ¬μ κΉμ 볡μ¬μ λν΄μλ μμΈν μ μ μμμ΅λλ€.