How to Solve Number of Ways to Rearrange Sticks With K Sticks Visible Problem
Master the Number of Ways to Rearrange Sticks With K Sticks Visible LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
Interview Coder generates complete solutions and debugging hints that you can use while explaining your approach, so you stay calm and in control.
Number of Ways to Rearrange Sticks With K Sticks Visible
There are n uniquely-sized sticks whose lengths are integers from 1 to n. You want to arrange the sticks such that exactly k sticks are visible from the left. A stick is visible from the left if there...
Interview Coder will help you solve this problem in real-time during your interview
✨ Get instant solutions, explanations, and code generation
Understanding the Number of Ways to Rearrange Sticks With K Sticks Visible Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
There are n uniquely-sized sticks whose lengths are integers from 1 to n. You want to arrange the sticks such that exactly k sticks are visible from the left. A stick is visible from the left if there are no longer sticks to the left of it. For example, if the sticks are arranged [1,3,2,5,4], then the sticks with lengths 1, 3, and 5 are visible from the left. Given n and k, return the number of such arrangements. Since the answer may be large, return it modulo 109 + 7.
Number of Ways to Rearrange Sticks With K Sticks Visible
Related Topics
How Interview Coder Helps
Get real-time assistance for Number of Ways to Rearrange Sticks With K Sticks Visible problems during coding interviews. Interview Coder provides instant solutions and explanations.
Examples
n = 3, k = 23[1,3,2], [2,3,1], and [2,1,3] are the only arrangements such that exactly 2 sticks are visible. The visible sticks are underlined.
n = 5, k = 51[1,2,3,4,5] is the only arrangement such that all 5 sticks are visible. The visible sticks are underlined.
n = 20, k = 11647427950There are 647427950 (mod 109 + 7) ways to rearrange the sticks such that exactly 11 sticks are visible.
Constraints
1 <= n <= 10001 <= k <= nHow Interview Coder Helps with Leetcode Problems
Trust anchors reduce friction for conversion. Reinforce undetectability claims, platform compatibility, user counts, and the free trial to remove perceived risk.
See Interview Coder in Action
Watch how Interview Coder helps solve LeetCode problems during live interviews
Undetectability Checklist
Platform Compatibility
User results and traction
More than 87,000 developers use Interview Coder and early launch metrics showed rapid adoption. Social proof signals that this approach helps real candidates land offers across a range of companies.
Undetectability and technical details
Our native desktop architecture avoids common detection vectors used by browser extensions. We provide a clear checklist so you can run basic checks and confirm the app will be invisible during live interviews.
Platform compatibility and limitations
We work with Zoom, HackerRank, CodeSignal, CoderPad and other web based platforms, with a known list of app version caveats. Check the compatibility note and request a browser link if a specific desktop app is unsupported.
Frequently Asked Questions
Common questions about solving Number of Ways to Rearrange Sticks With K Sticks Visible and using Interview Coder during coding interviews.
Interview Coder generates complete solutions instantly with proper complexity analysis, letting you focus on explaining your approach and demonstrating problem-solving skills rather than getting stuck on implementation details during high-pressure situations.
Ready to Get Started?
Download Interview Coder now and join thousands of developers who have aced their coding interviews