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Commit8a381aa

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225-implement-stack-using-queues.md Updatedlen(self.queue) == 0 tonot self.queue.
1 parente0b9b63 commit8a381aa

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‎en/1-1000/225-implement-stack-using-queues.md

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -169,7 +169,7 @@ class MyStack:
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return value
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defempty(self) ->bool:
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returnlen(self.queue)==0
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returnnotself.queue
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```
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###Solution for option 2: It is short and easy to understand (recommended).
@@ -199,7 +199,7 @@ class MyStack:
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returnself.queue[0]
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defempty(self) ->bool:
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returnlen(self.queue)==0
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returnnotself.queue
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```
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##Java

‎zh/1-1000/225-implement-stack-using-queues.md

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -169,7 +169,7 @@ class MyStack:
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return value
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defempty(self) ->bool:
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returnlen(self.queue)==0
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returnnotself.queue
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```
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###方案二:推荐的方案。既短,又好理解。
@@ -199,7 +199,7 @@ class MyStack:
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returnself.queue[0]
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defempty(self) ->bool:
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returnlen(self.queue)==0
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returnnotself.queue
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```
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##Java

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