LeetCode Daily 2026-05-23 |
🔥 LeetCode Problem of the Day — 2026-05-23
📌 Problem: Check if Array Is Sorted and Rotated
🏆 Difficulty: Easy
🔗 Problem Link: https://leetcode.com/problems/check-if-arr...
🏷️ Topics: Array
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📖 In this video:
• Problem walkthrough
• Intuition & approach
• C++ solution with explanation
• Time & Space complexity analysis
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💡 Solution Summary
Intuition: The core insight behind this problem is to understand that a rotated sorted array will have at most one point where the values decrease (i.e., a rotation point), except in cases where the original array was already sorted (no rotation). The presence of duplicate values doesn't affect this analysis.
Approach: We iterate over the array to count the number of times the value at an index is greater than the value at the next index (which indicates a potential rotation point). After the loop, we check if the last value is greater than the first value, which would indicate a rotation
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