Given two integers n and k, return an array of all the integers of length n where the difference between every two consecutive digits is k. You may return the answer in any order.
Note that the integers should not have leading zeros. Integers as 02 and 043 are not allowed.
Example 1:
Input: n = 3, k = 7 Output: [181,292,707,818,929] Explanation: Note that 070 is not a valid number, because it has leading zeroes.
Example 2:
Input: n = 2, k = 1 Output: [10,12,21,23,32,34,43,45,54,56,65,67,76,78,87,89,98]
Constraints:
2 <= n <= 90 <= k <= 9The brute force method involves iterating through all possible solutions to find the correct one. While it might not be the most efficient, it serves as a good starting point to understand the problem.
This solution demonstrates a basic function using the brute force approach in C. Adjust the implementation as per your problem.
C++
Java
Python
C#
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Time Complexity: O(n^2)
Space Complexity: O(1)
This approach utilizes an efficient data structure that best fits the problem, reducing time complexity. Choose from hash tables, arrays, or trees based on the requirements.
This solution demonstrates a more optimized function using specific data structures in C. Optimize the implementation based on your problem.
C++
Java
Python
C#
JavaScript
Time Complexity: O(n)
Space Complexity: O(n) using auxiliary data structures.
| Approach | Complexity |
|---|---|
| Approach 1: Brute Force Method | Time Complexity: O(n^2) |
| Approach 2: Optimized Method using a Data Structure | Time Complexity: O(n) |
Numbers With Same Consecutive Differences | LeetCode 967 | C++, Java, Python • Knowledge Center • 7,274 views views
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