Largest Smaller Than

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Easier

Concepts

Loops, Lists, Conditionals

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largest-smaller-than.zip

Solution

Largest Smaller Than: Solution

Given an ordered list of numbers and a number, return the index of the largest number in the list that is smaller than that number.

For example:

>>> find_largest_smaller_than([-5, -2, 8, 12, 32], 10)
2

>>> find_largest_smaller_than([-5, -2, 8, 12, 32], 33)
4

>>> find_largest_smaller_than([-5, -2, 8, 12, 32], -1)
1

Never find xnumber — it’s not smaller than itself!

>>> find_largest_smaller_than([-5, -2, 8, 12, 32], 8)
1

If no such number exists, return None:

>>> find_largest_smaller_than([-5, -2, 8, 12, 32], -10) is None
True

We’ve given you a stub function. Implement it:

def find_largest_smaller_than(nums, xnumber):
    """Find largest number in sorted list that is smaller than given number."""