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ShinJJang/perm_missing_elem.py

Created January 10, 2020 09:42
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perm_missing_elem.py
def solution(A):
check_list = [False] * (len(A) + 1)
for i in A:
check_list[i-1] = True
for idx, j in enumerate(check_list):
if not j:
return idx + 1
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