𝗔𝗿𝗿𝗮𝘆𝘀 𝗮𝗻𝗱 𝗦𝘁𝗿𝗶𝗻𝗴𝘀: 1. Find the maximum sum subarray. 2. Find all substrings that are palindromes. 3. Implement the "two sum" problem. 4. Implement Kadane's algorithm for maximum ...

Optimal Solution III => Using Kadane's Algorithm. // Kadane's Algorithm with index tracking. // Returns the starting and ending indices of the maximum sum subarray.

A model either recognizes the problem and replaces the loop with Kadane's O (n) algorithm — or it doesn't, and stays ~2,000× slower. 12 models found it in every single attempt, several only sometimes ...