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Bug fixes and improvements (#1298)
* Fix is_empty() implementation in the stack and queue chapter * Update en/CONTRIBUTING.md * Remove "剩余" from the state definition of knapsack problem * Sync zh and zh-hant versions * Update the stylesheets of code tabs * Fix quick_sort.rb * Fix TS code * Update chapter_paperbook * Upload the manuscript of 0.1 section * Fix binary_tree_dfs.rb * Bug fixes * Update README * Update README * Update README * Update README.md * Update README * Sync zh and zh-hant versions * Bug fixes
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@ -18,7 +18,7 @@ class ArrayStack:
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def is_empty(self) -> bool:
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"""判断栈是否为空"""
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return self._stack == []
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return self.size() == 0
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def push(self, item: int):
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"""入栈"""
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