# Costs and trade-offs — Data Structures in Python

Source: https://www.geekswithgeeks.com/en/data-structures-python/data-structures-python-04

> Apply trade-offs 1 in Data Structures in Python.

## Understand Costs and trade-offs

In **Data Structures in Python**, connect the problem, constraints, and measurable outcome before choosing an approach.

## Practise deliberately

Use a small example and verify one result before expanding it.

## A useful comparison

This is like a route plan: every step should lead to a checked destination.

Check your reasoning.

**Quiz:** What comes before choosing an approach?

- [x] A clear goal and constraints.
- [ ] An unverified copy.
- [ ] No measurement.

*Answer:* A clear goal and constraints.. Evidence makes decisions reviewable.