Problem · Math
Count Numbers Without Repeating Digits Data & Analytics
Learn this problemProblem statement
Given a range of elements, print the number of elements in the range without repeating digits. For example, the result for the range 10-13 is 3 (since 10, 12, and 13 are the valid numbers, but 11 is not because it has repeating digits).
Function
countNumbersWithoutRepeatingDigits(start: int, end: int) → intExamples
Example 1
start = 10end = 13return = 3The valid numbers in the range 10-13 are 10, 12, and 13. The number 11 is not valid because it has repeating digits. Therefore, the count of numbers without repeating digits is 3.
Constraints
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