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344.py
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344.py
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__________________________________________________________________________________________________
sample 200 ms submission
class Solution:
def reverseString(self, s: List[str]) -> None:
"""
Do not return anything, modify s in-place instead.
"""
s = s.reverse()
__________________________________________________________________________________________________
sample 17192 kb submission
class Solution:
def reverseString(self, s: List[str]) -> None:
"""
Do not return anything, modify s in-place instead.
"""
head = 0
tail = len(s) - 1
while head < tail:
s[head], s[tail] = s[tail], s[head]
head += 1
tail -= 1
print(s)
__________________________________________________________________________________________________