DSA Application in Real Life: How Git Diff Works: LCS Intuition, Myers Algorithm, and Real Code Changes

The Algorithm Hiding Behind git diff

You've run git diff hundreds of times.

Red lines. Green lines. Done.

But have you ever stopped and asked — what algorithm is actually doing that?

It turns out, it's one of the most classic problems in computer science: Longest Common Subsequence. And it's been hiding inside your terminal every single day.