πλ°±μ€ μ νλλ² 4673λ²
https://www.acmicpc.net/problem/4673
πset() μλ£νμ μλ€λ©΄ ν μ μλ λ¬Έμ λ€.
- ν
setμ listμ²λΌ μμλ₯Ό μΆκ°νμ§ μλλ€a = list() a.append(1) ########### b = set() b.add(1)
set μ addλ₯Ό μ¬μ©νλ€.
num = set(range(1, 10000))
create_num = set()
for i in num:
for x in str(i):
i += int(x)
create_num.add(i)
result = list(num - create_num)
result.sort()
for i in result:
print(i)
print(result)
π num μ λ¬Έμ μμ μ ν΄μ€ 10000κΉμ§ μ«μλ₯Ό setμΌλ‘ μ΄κΈ°ν ν ν
μμ±μκ° μλ(μ ν λλ²κ° μλ) μ«μλ€μ creat_numμ λ΄λλ€
κ·Έ ν setμ μ°¨μ§ν©μ΄ κ°λ₯νμ¬ resultμ μ ν λλ²λ₯Ό λ΄μ μ£Όμλ€.
π μ½λ© ν μ€νΈμ whileλ¬Έμ΄λ for λ¬Έμμ
if node in summits: (#summits 리μ€νΈμ nodeκ° μλ€λ©΄)
μμ κ°μ μ½λκ° κ³μ λ°λ³΅λλ€λ©΄ 리μ€νΈ νμ (N) μ κ³μ νκΈ°λλ¬Έμ summits μ체λ₯Ό set() μΌλ‘ λ°κΎΈμ΄ μ£Όλ©΄ ν΄μ νμμ νμ¬ ν¨μ¬ λΉ¨λΌμ§λ€.
summits = set(summits)