#1012
Numbers With Repeated Digits
candidate master · 1545 · lc hard +32 · verified · 45.8% accepted · 852 likes · top 29%
Description
Given an integer n, return the count of positive integers in the range [1, n] that contain at least one repeated digit.
Example 1:
Input: n = 20
Output: 1
Explanation: The only positive number (<= 20) with at least 1 repeated digit is 11.
Example 2:
Input: n = 100
Output: 10
Explanation: The positive numbers (<= 100) with atleast 1 repeated digit are 11, 22, 33, 44, 55, 66, 77, 88, 99, and 100.
Example 3:
Input: n = 1000
Output: 262
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