# 算法代写|运筹学代写MA3602，100%通过率

1. 算法与统计

2.优化

3. 模拟

### 运筹学回答了哪些问题？

1. 线性规划

2. 排队论或排队论。

3. 库存控制系统

4.网络分析

1. Describe the differences between an undirected graph and a directed graph, providing an example practical application of each.
2. An industrial process involves cutting varying-sized rectangular items from larger, fixed-sized sheets. A company is interested in designing a process that minimises the number of the larger H × W sheets needed to produce a given set of items. The following diagram shows a problem instance involving six items, together with a valid solution using two H × W sheets.

Prove that this problem is NP-hard

• Considering the problem stated in Part b), give details of some special cases that could be solved in polynomial time.

For a graph G= (V, E), describe what is meant by an independent set of vertices, and what is meant by an independent set of edges. Give a detailed account, with examples, as to why the problem of finding the largest independent set of vertices in G is NP-hard, whereas the problem of finding the largest independent set of edges in G is polynomially solvable.

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