Concepts2
⚙️AlgorithmIntermediate
Contribution Technique
The contribution technique flips perspective: compute how much each element contributes to the total, then sum these contributions.
#contribution technique#monotonic stack#sum of subarray minimums+12
🗂️Data StructureIntermediate
Monotonic Stack
A monotonic stack is a stack that keeps its elements in increasing or decreasing order to answer range queries in linear time.
#monotonic stack#next greater element#previous smaller element+12