{ "data": { "question": { "questionId": "1057", "questionFrontendId": "1012", "boundTopicId": null, "title": "Numbers With Repeated Digits", "titleSlug": "numbers-with-repeated-digits", "content": "

Given an integer n, return the number of positive integers in the range [1, n] that have at least one repeated digit.

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Example 1:

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\nInput: n = 20\nOutput: 1\nExplanation: The only positive number (<= 20) with at least 1 repeated digit is 11.\n
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Example 2:

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\nInput: n = 100\nOutput: 10\nExplanation: The positive numbers (<= 100) with atleast 1 repeated digit are 11, 22, 33, 44, 55, 66, 77, 88, 99, and 100.\n
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Example 3:

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\nInput: n = 1000\nOutput: 262\n
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Constraints:

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Most standard library headers are already included automatically for your convenience.

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OpenJDK 17 . Java 8 features such as lambda expressions and stream API can be used.

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Python 2.7.12.

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Most libraries are already imported automatically for your convenience, such as array, bisect, collections. If you need more libraries, you can import it yourself.

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For Map/TreeMap data structure, you may use sortedcontainers library.

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C# 10 with .NET 6 runtime

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Ruby 3.1

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Go 1.17.6.

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Python 3.10.

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