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38 lines
763 B
38 lines
763 B
=begin
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File: stack.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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# 初始化堆疊
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# Ruby 沒有內建的堆疊類別，可以把 Array 當作堆疊來使用
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stack = []
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# 元素入堆疊
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stack << 1
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stack << 3
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stack << 2
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stack << 5
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stack << 4
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puts "堆疊 stack = #{stack}"
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# 訪問堆疊頂元素
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peek = stack.last
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puts "堆疊頂元素 peek = #{peek}"
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# 元素出堆疊
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pop = stack.pop
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puts "出堆疊元素 pop = #{pop}"
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puts "出堆疊後 stack = #{stack}"
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# 獲取堆疊的長度
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size = stack.length
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puts "堆疊的長度 size = #{size}"
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# 判斷是否為空
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is_empty = stack.empty?
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puts "堆疊是否為空 = #{is_empty}"
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end
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