将整数转换为范围但允许的孔

时间:2014-05-08 13:26:03

标签: python range

将一组整数转换为范围的最pythonic方法是什么(有问题已经converting a list of integers into range in python)但是有某种可接受的余量?

示例,我们有: 1,2,3,4,5,10,11,15,45,46,47,75,76,80,85

通常我们会得到: {1,5},{10,11},{15,15},{45,47},{75,76},{80,80},{85,85}

但我们希望允许20的保证金,因此只有当前一项和下一项之间的差异大于20时才会创建下一个范围

结果我们应该得到: {1,15},{45,47},{75,85}

1 个答案:

答案 0 :(得分:1)

def to_ranges(nums):
  rngs = []
  start = nums[0]
  curr = start
  for n in nums[1:]:
    if n > curr + 20:
      rngs.append(range(start, curr + 1))
      start = n
    curr = n
  rngs.append(range(start, curr + 1))
  return rngs

>>> to_ranges([1, 2, 3, 4, 5, 10, 11, 15, 45, 46, 47, 75, 76, 80, 85])
[range(1, 16), range(45, 48), range(75, 86)]