Problem 2320. Pandigital number n°2 (Inspired by Project Euler 32)

After Problem 2319.

An n-digit number is pandigital if it makes use of all the digits 1 to n exactly ONCE.

For example, the 5-digit number 15234, is 1 through 5 pandigital.

Find the number of pandigital numbers in a given interval (between xlower and xupper).

The test suite is simple here, but how to compute this number with BIG interval (pandigital number length > 7) in Cody time?

For example, between 58755 and 99899923?

Solution Stats

69.77% Correct | 30.23% Incorrect
Last solution submitted on Oct 15, 2019

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