Free SKILL.md scraped from GitHub. Clone the repo or copy the file directly into your Claude Code skills directory.
npx versuz@latest install a5c-ai-babysitter-library-specializations-algorithms-optimization-skills-data-strugit clone https://github.com/a5c-ai/babysitter.gitcp babysitter/SKILL.MD ~/.claude/skills/a5c-ai-babysitter-library-specializations-algorithms-optimization-skills-data-stru/SKILL.md---
name: data-structure-selector
description: Select optimal data structure based on operation requirements
allowed-tools:
- Read
- Write
- Grep
- Glob
---
# Data Structure Selector Skill
## Purpose
Select the optimal data structure based on required operations, their frequencies, and time/space constraints.
## Capabilities
- Analyze required operations (insert, delete, query, update)
- Match to optimal data structure
- Consider time/space trade-offs
- Suggest augmentations for custom requirements
- Compare alternatives with complexity analysis
## Target Processes
- data-structure-implementation
- algorithm-implementation
- complexity-optimization
## Selection Framework
### Operation Analysis
1. What operations are needed?
2. What are the frequency/priority of each operation?
3. What are the constraints (N, Q, time limit)?
4. Is persistence needed?
5. Are range operations required?
### Common Selection Patterns
| Operations | Best Choice |
|------------|-------------|
| Insert, Delete, Search | BST / Hash Map |
| Range sum, Point update | Fenwick Tree |
| Range query, Range update | Segment Tree + Lazy |
| Union, Find | DSU |
| Min/Max with add/remove | Multiset / Heap |
| Predecessor/Successor | Ordered Set / BST |
## Input Schema
```json
{
"type": "object",
"properties": {
"operations": {
"type": "array",
"items": {
"type": "object",
"properties": {
"name": { "type": "string" },
"frequency": { "type": "string" },
"constraints": { "type": "string" }
}
}
},
"constraints": { "type": "object" },
"preferences": { "type": "array" }
},
"required": ["operations"]
}
```
## Output Schema
```json
{
"type": "object",
"properties": {
"success": { "type": "boolean" },
"recommended": { "type": "string" },
"complexities": { "type": "object" },
"alternatives": { "type": "array" },
"augmentations": { "type": "array" },
"reasoning": { "type": "string" }
},
"required": ["success", "recommended"]
}
```