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* Add Ruby and Kotlin icons Add the avatar of @curtishd * Update README * Synchronize zh-hant and zh versions. * Translate the pythontutor blocks to traditional Chinese * Fix en/mkdocs.yml * Update the landing page of the en version. * Fix the Dockerfile * Refine the en landingpage * Fix en landing page * Reset the README.md
42 lines
1.2 KiB
Ruby
42 lines
1.2 KiB
Ruby
=begin
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File: deque.rb
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Created Time: 2024-04-06
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Author: Xuan Khoa Tu Nguyen (ngxktuzkai2000@gmail.com)
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=end
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### Driver Code ###
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if __FILE__ == $0
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# 初始化雙向佇列
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# Ruby 沒有內直的雙端佇列，只能把 Array 當作雙端佇列來使用
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deque = []
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# 元素如隊
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deque << 2
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deque << 5
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deque << 4
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# 請注意，由於是陣列，Array#unshift 方法的時間複雜度為 O(n)
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deque.unshift(3)
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deque.unshift(1)
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puts "雙向佇列 deque = #{deque}"
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# 訪問元素
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peek_first = deque.first
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puts "佇列首元素 peek_first = #{peek_first}"
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peek_last = deque.last
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puts "佇列尾元素 peek_last = #{peek_last}"
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# 元素出列
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# 請注意，由於是陣列， Array#shift 方法的時間複雜度為 O(n)
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pop_front = deque.shift
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puts "佇列首出列元素 pop_front = #{pop_front}，佇列首出列後 deque = #{deque}"
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pop_back = deque.pop
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puts "佇列尾出列元素 pop_back = #{pop_back}, 佇列尾出列後 deque = #{deque}"
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# 獲取雙向佇列的長度
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size = deque.length
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puts "雙向佇列長度 size = #{size}"
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# 判斷雙向佇列是否為空
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is_empty = size.zero?
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puts "雙向佇列是否為空 = #{is_empty}"
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end
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