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[chordpli] Week 1 Solutions #1721

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Jul 27, 2025
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[chordpli] Week 1 Solutions #1721

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12 changes: 12 additions & 0 deletions contains-duplicate/chordpli.py
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Original file line number Diff line number Diff line change
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from typing import List

class Solution:
def containsDuplicate(self, nums: List[int]) -> bool:
dic = {}

for num in nums:
if dic.get(num):
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if dic.get(num) 은 num=0일 경우 문제 생길 수 있으므로 더 안전하게 하려면 if num in dic: 사용 추천합니다.

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감사합니다! 수정하겠습니다!

return True
dic[num] = 1

return False
11 changes: 11 additions & 0 deletions two-sum/chordpli.py
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from typing import List

class Solution:
def twoSum(self, nums: List[int], target: int) -> List[int]:
map = {}
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map은 Python 내장 함수 이름(map())과 겹치므로 다른 변수명 사용 권장합니다.

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감사합니다! 이후엔 고려해서 변수명을 명명하겠습니다~!

for i, num in enumerate(nums):
complement = target - num
if complement in map:
return [map[complement], i]

map[num] = i