Tap here to switch tabs
Problem
Submissions
Problem: Reorganize String
med
30 min
Explore how to reorganize a string to ensure no two adjacent characters repeat by recognizing and applying the top k elements pattern. This lesson guides you through understanding the problem constraints and developing solutions to implement valid rearrangements or return an empty string.
Statement
Given a string, str, rearrange it so that any two adjacent characters are not the same. If such a reorganization of the characters is possible, output any possible valid arrangement. Otherwise, return an empty string.
Constraints:
-
str.length - Input string consists of lowercase English letters.
Examples
Understand the problem
Figure it out!
Try it yourself
Similar Problems
Find the K-Sum of an Array
Maximum Product After K Increments
Least Number of Unique Integers after K Removals
Final Array State After K Multiplication Operations I
Kth Largest Element in a Stream
K Closest Points to Origin
Top K Frequent Elements
Kth Largest Element in an Array
Maximal Score After Applying K Operations
Find the Kth Largest Integer in the Array
Unlock AI-Powered LearningUpgrade to smarter learning with instant explanations of Ask Agent, Personalized Interview Prep, Real-World Projects, 3 AI Mock Interviews per month, and Personalized Paths
⋮
Tap here to switch tabs
Problem
Submissions
Problem: Reorganize String
med
30 min
Explore how to reorganize a string to ensure no two adjacent characters repeat by recognizing and applying the top k elements pattern. This lesson guides you through understanding the problem constraints and developing solutions to implement valid rearrangements or return an empty string.
Statement
Given a string, str, rearrange it so that any two adjacent characters are not the same. If such a reorganization of the characters is possible, output any possible valid arrangement. Otherwise, return an empty string.
Constraints:
-
str.length - Input string consists of lowercase English letters.
Examples
Understand the problem
Figure it out!
Try it yourself
Similar Problems
Find the K-Sum of an Array
Maximum Product After K Increments
Least Number of Unique Integers after K Removals
Final Array State After K Multiplication Operations I
Kth Largest Element in a Stream
K Closest Points to Origin
Top K Frequent Elements
Kth Largest Element in an Array
Maximal Score After Applying K Operations
Find the Kth Largest Integer in the Array
Unlock AI-Powered LearningUpgrade to smarter learning with instant explanations of Ask Agent, Personalized Interview Prep, Real-World Projects, 3 AI Mock Interviews per month, and Personalized Paths