|
|
@ -56,13 +56,56 @@ comments: true
|
|
|
|
=== "C++"
|
|
|
|
=== "C++"
|
|
|
|
|
|
|
|
|
|
|
|
```cpp title="bucket_sort.cpp"
|
|
|
|
```cpp title="bucket_sort.cpp"
|
|
|
|
[class]{}-[func]{bucketSort}
|
|
|
|
/* 桶排序 */
|
|
|
|
|
|
|
|
void bucketSort(vector<float> &nums) {
|
|
|
|
|
|
|
|
// 初始化 k = n/2 个桶,预期向每个桶分配 2 个元素
|
|
|
|
|
|
|
|
int k = nums.size() / 2;
|
|
|
|
|
|
|
|
vector<vector<float>> buckets(k);
|
|
|
|
|
|
|
|
// 1. 将数组元素分配到各个桶中
|
|
|
|
|
|
|
|
for (float num : nums) {
|
|
|
|
|
|
|
|
// 输入数据范围 [0, 1),使用 num * k 映射到索引范围 [0, k-1]
|
|
|
|
|
|
|
|
int i = num * k;
|
|
|
|
|
|
|
|
// 将 num 添加进桶 bucket_idx
|
|
|
|
|
|
|
|
buckets[i].push_back(num);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
// 2. 对各个桶执行排序
|
|
|
|
|
|
|
|
for (vector<float> &bucket : buckets) {
|
|
|
|
|
|
|
|
// 使用内置排序函数,也可以替换成其它排序算法
|
|
|
|
|
|
|
|
sort(bucket.begin(), bucket.end());
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
// 3. 遍历桶合并结果
|
|
|
|
|
|
|
|
int i = 0;
|
|
|
|
|
|
|
|
for (vector<float> &bucket : buckets) {
|
|
|
|
|
|
|
|
for (float num : bucket) {
|
|
|
|
|
|
|
|
nums[i++] = num;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
```
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
=== "Python"
|
|
|
|
=== "Python"
|
|
|
|
|
|
|
|
|
|
|
|
```python title="bucket_sort.py"
|
|
|
|
```python title="bucket_sort.py"
|
|
|
|
[class]{}-[func]{bucket_sort}
|
|
|
|
def bucket_sort(nums: list[float]) -> None:
|
|
|
|
|
|
|
|
# 初始化 k = n/2 个桶,预期向每个桶分配 2 个元素
|
|
|
|
|
|
|
|
k = len(nums) // 2
|
|
|
|
|
|
|
|
buckets = [[] for _ in range(k)]
|
|
|
|
|
|
|
|
# 1. 将数组元素分配到各个桶中
|
|
|
|
|
|
|
|
for num in nums:
|
|
|
|
|
|
|
|
# 输入数据范围 [0, 1),使用 num * k 映射到索引范围 [0, k-1]
|
|
|
|
|
|
|
|
i = int(num * k)
|
|
|
|
|
|
|
|
# 将 num 添加进桶 i
|
|
|
|
|
|
|
|
buckets[i].append(num)
|
|
|
|
|
|
|
|
# 2. 对各个桶执行排序5
|
|
|
|
|
|
|
|
for bucket in buckets:
|
|
|
|
|
|
|
|
# 使用内置排序函数,也可以替换成其它排序算法
|
|
|
|
|
|
|
|
bucket.sort()
|
|
|
|
|
|
|
|
# 3. 遍历桶合并结果
|
|
|
|
|
|
|
|
i = 0
|
|
|
|
|
|
|
|
for bucket in buckets:
|
|
|
|
|
|
|
|
for num in bucket:
|
|
|
|
|
|
|
|
nums[i] = num
|
|
|
|
|
|
|
|
i += 1
|
|
|
|
```
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
=== "Go"
|
|
|
|
=== "Go"
|
|
|
|