This commit is contained in:
krahets
2024-04-12 03:16:45 +08:00
parent 8b8168bb31
commit b5f94abec9
10 changed files with 217 additions and 101 deletions

View File

@@ -293,7 +293,26 @@ comments: true
=== "Ruby"
```ruby title="binary_search_insertion.rb"
[class]{}-[func]{binary_search_insertion_simple}
### 二分查找插入点(无重复元素) ###
def binary_search_insertion_simple(nums, target)
# 初始化双闭区间 [0, n-1]
i, j = 0, nums.length - 1
while i <= j
# 计算中点索引 m
m = (i + j) / 2
if nums[m] < target
i = m + 1 # target 在区间 [m+1, j] 中
elsif nums[m] > target
j = m - 1 # target 在区间 [i, m-1] 中
else
return m # 找到 target ,返回插入点 m
end
end
i # 未找到 target ,返回插入点 i
end
```
=== "Zig"
@@ -625,7 +644,26 @@ comments: true
=== "Ruby"
```ruby title="binary_search_insertion.rb"
[class]{}-[func]{binary_search_insertion}
### 二分查找插入点(存在重复元素) ###
def binary_search_insertion(nums, target)
# 初始化双闭区间 [0, n-1]
i, j = 0, nums.length - 1
while i <= j
# 计算中点索引 m
m = (i + j) / 2
if nums[m] < target
i = m + 1 # target 在区间 [m+1, j] 中
elsif nums[m] > target
j = m - 1 # target 在区间 [i, m-1] 中
else
j = m - 1 # 首个小于 target 的元素在区间 [i, m-1] 中
end
end
i # 返回插入点 i
end
```
=== "Zig"