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2 changes: 1 addition & 1 deletion problems/0151.翻转字符串里的单词.md
Original file line number Diff line number Diff line change
Expand Up @@ -492,7 +492,7 @@ class Solution:
if s[fast] != " ":
if len(result) != 0:
result += " "
while s[fast] != " " and fast < len(s):
while fast < len(s) and s[fast] != " ": # 交换顺序会出现数组越界
result += s[fast]
fast += 1
else:
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