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@@ -293,7 +293,26 @@ comments: true
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=== "Ruby"
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```ruby title="binary_search_insertion.rb"
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[class]{}-[func]{binary_search_insertion_simple}
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### 二分搜尋插入點(無重複元素) ###
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def binary_search_insertion_simple(nums, target)
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# 初始化雙閉區間 [0, n-1]
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i, j = 0, nums.length - 1
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while i <= j
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# 計算中點索引 m
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m = (i + j) / 2
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if nums[m] < target
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i = m + 1 # target 在區間 [m+1, j] 中
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elsif nums[m] > target
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j = m - 1 # target 在區間 [i, m-1] 中
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else
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return m # 找到 target ,返回插入點 m
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end
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end
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i # 未找到 target ,返回插入點 i
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end
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```
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=== "Zig"
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@@ -625,7 +644,26 @@ comments: true
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=== "Ruby"
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```ruby title="binary_search_insertion.rb"
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[class]{}-[func]{binary_search_insertion}
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### 二分搜尋插入點(存在重複元素) ###
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def binary_search_insertion(nums, target)
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# 初始化雙閉區間 [0, n-1]
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i, j = 0, nums.length - 1
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while i <= j
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# 計算中點索引 m
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m = (i + j) / 2
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if nums[m] < target
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i = m + 1 # target 在區間 [m+1, j] 中
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elsif nums[m] > target
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j = m - 1 # target 在區間 [i, m-1] 中
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else
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j = m - 1 # 首個小於 target 的元素在區間 [i, m-1] 中
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end
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end
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i # 返回插入點 i
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end
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```
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=== "Zig"
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