Maximum Score From Removing Substrings - Solution & Explanation

In this approach, we prioritize removing the substring with a higher score first. We utilize a stack to efficiently traverse and remove substrings from the string. Given two substrings 'ab' and 'ba', and their scores x and y, we decide which to remove first based on the higher score. The stack helps in processing the string in a single pass, adding character by character and checking for the target substring ending each time.

This solution leverages a stack to remove 'ab' or 'ba' substrings based on their point values. The approach consists of two sweeps across the input string: one for the highest point substring and another for the remaining to maximize the score.

The Two-Pointer approach leverages two pointers to parse through the string and eliminate substrings optimally. By managing two scanning points, determining which pattern to remove can be executed with minimal operations, optimizing score calculation effectively.

This C solution uses two pointers combined with a simulated stack to efficiently parse and optimize substring removal by maximizing the scores at each step through linear traversal.