The O(n) Club: Minimum Cost Tree From Leaf Values — Monotonic Stack Style
The O(n) Club: Minimum Cost Tree From Leaf Values — Monotonic Stack Style ⚡ TL;DR Your goal: take an array of integers (leaves) and build a…
The O(n) Club: Minimum Cost Tree From Leaf Values — Monotonic Stack Style
The O(n) Club: Minimum Cost Tree From Leaf Values — Monotonic Stack Style ⚡ TL;DR Your goal: take an array of integers (leaves) and build a…
The O(n) Club: Minimum Cost Tree From Leaf Values — Monotonic Stack Style
The O(n) Club: Minimum Cost Tree From Leaf Values — Monotonic Stack Style ⚡ TL;DR Your goal: take an array of integers (leaves) and build a…
The O(n) Club: Cheapest Flights Within K Stops: Layovers, Logic, and Code Turbulence
The O(n) Club: Cheapest Flights Within K Stops – Layovers, Logic, and Code Turbulence ⚡ TL;DR Want the cheapest ticket from A to B with no…
The O(n) Club: Unique Binary Search Trees II: Recursion’s Party Trick
The O(n) Club: Unique Binary Search Trees II — Recursion’s Party Trick ⚡ TL;DR Given n, build every possible BST using values 1 to n. Don’t…
The O(n) Club: Longest Increasing Path in a Matrix — Because Who Needs Diagonals?
The O(n) Club: Longest Increasing Path in a Matrix — Because Who Needs Diagonals? ⚡ TL;DR Find the longest path in a matrix by moving up,…
The O(n) Club: Counting Bits: Why Loop When You Can Cheat?
The O(n) Club: Counting Bits: Why Loop When You Can Cheat? ⚡ TL;DR Given n, return an array of the number of 1’s (set bits) in each…
The O(n) Club: House Robber III: Binary Trees, Burglaries & Existential Dread
The O(n) Club: House Robber III—Binary Trees, Burglaries & Existential Dread ⚡ TL;DR You’re breaking into a mansion that’s…
The O(n) Club: Binary Tree Maximum Path Sum, Now With Extra Chaos
The O(n) Club: Binary Tree Maximum Path Sum, Now With Extra Chaos ⚡ TL;DR Hunt for the highest-sum path in your binary tree. This path can…