计数排序与桶排序python实现

def count_sort(s):
    """计数排序"""
    # 找到最大最小值
    min_num = min(s)
    max_num = max(s)
    # 计数列表
    count_list = [0]*(max_num-min_num+1)
    # 计数
    for i in s:
        count_list[i-min_num] += 1
    s.clear()
    # 填回
    for ind,i in enumerate(count_list):
        while i != 0:
            s.append(ind+min_num)
            i -= 1

if __name__ == '__main__':
    a = [3,6,8,4,2,6,7,3]
    count_sort(a)
    print(a)

def bucket_sort(s):
    """桶排序"""
    min_num = min(s)
    max_num = max(s)
    # 桶的大小
    bucket_range = (max_num-min_num) / len(s)
    # 桶数组
    count_list = [ [] for i in range(len(s) + 1)]
    # 向桶数组填数
    for i in s:
        count_list[int((i-min_num)//bucket_range)].append(i)
    s.clear()
    # 回填，这里桶内部排序直接调用了sorted
    for i in count_list:
        for j in sorted(i):
            s.append(j)

if __name__ == '__main__':
    a = [3.2,6,8,4,2,6,7,3]
    bucket_sort(a) 
    print(a) # [2, 3, 3.2, 4, 6, 6, 7, 8]