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spring: Update question (9/23 study)
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jjuyeon committed Sep 19, 2021
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5 changes: 4 additions & 1 deletion README.md
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- [Question](./java/README.md)

## :five: Algorithm (+ Data Structure)
- [Question](./algorithm/README.md)
- [Question](./algorithm/README.md)

## :six: Spring
- [Question](./spring/README.md)
2 changes: 1 addition & 1 deletion algorithm/jsy/mst.md
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#### 3-2. 구현
- 가중치를 저장하여, Edge 관리를 해야한다.
- union-find 를 사용하여 구현한다.
- 왜? 현재 선택된 가중치가 같은 집합(MST)에 속하지 않는 간선인지 확인(**find**) -> 사이클을 형성하지 않는다고 확인되면, MST 집합에 합침(**union**)
- 왜? 현재 선택된 간선이 MST 집합에서 사이클을 이루는 간선인지 확인(**find**) -> 사이클을 형성하지 않는다고 확인되면, MST 집합에 합침(**union**)

#### 3-3. 시간복잡도
![kruskal](https://img1.daumcdn.net/thumb/R1280x0/?scode=mtistory2&fname=https%3A%2F%2Fblog.kakaocdn.net%2Fdn%2FUxeke%2FbtqJs4y1tXA%2F7HDz2N2NjtSEFNhOKh5Rsk%2Fimg.png)
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14 changes: 14 additions & 0 deletions spring/README.md
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# 6) Spring
- contributor : [김경원](https://github.com/shining8543) , [윤이진](https://github.com/483759) , [진수연](https://github.com/jjuyeon)
<hr/>

### :notebook_with_decorative_cover: Spring
1. Spring MVC 구조 흐름에 대해 과정대로 설명해주세요.
2. Spring DI에 대해 설명해주세요.

### :notebook_with_decorative_cover: JPA
1. JPA Propagation 전파단계를 설명해주세요.
2. N + 1 문제가 발생하는 이유와 이를 해결하는 방법을 설명해주세요.

### :notebook_with_decorative_cover: Design Pattern
1. Builder 패턴에 대해서 설명하세요.
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