UVA_497_Strategic Defense Initiative

本文介绍了一个使用C++实现的最长递增子序列(LIS)算法案例,该算法通过读取一系列整数并找出其中最长的递增子序列。通过对输入数据的逐行解析,算法构建了动态规划表来跟踪递增子序列的状态,最终输出最长递增子序列的长度及其具体数值。
#include<iostream>
#include<sstream>
#include<string>
#include<vector>
#include<list>
#include<set>
#include<map>
#include<stack>
#include<queue>
#include<algorithm>
#pragma warning(disable:4996)
using std::cin;
using std::cout;
using std::endl;
using std::stringstream;
using std::string;
using std::vector;
using std::list;
using std::pair;
using std::set;
using std::multiset;
using std::map;
using std::multimap;
using std::stack;
using std::queue;
using std::priority_queue;
int main()
{
	//freopen("input.txt", "r", stdin);
	//freopen("output.txt", "w", stdout);
	int T;
	while (cin >> T)
	{
		cin.get();//屏蔽回车
		cin.get();//屏蔽回车
		while (T--)
		{
			string str;
			vector<vector<int>>dp;
			while (getline(cin, str))
			{
				if (str.empty())
				{
					break;
				}
				stringstream stream; stream << str;
				int value; stream >> value;
				dp.resize(dp.size() + 1);
				dp[dp.size() - 1].push_back(value);
			}
			int index = 0;
			for (size_t i = 1; i != dp.size(); i++)
			{
				int value = dp[i][0];
				for (int j = i - 1; j >= 0; j--)
				{
					if (value > dp[j][dp[j].size() - 1] && dp[i].size() < dp[j].size() + 1)
					{
						dp[i] = dp[j];
					}
				}
				if (dp[i][0] != value)
				{
					dp[i].push_back(value);
				}
				if (dp[i].size() > dp[index].size())
				{
					index = i;
				}
			}
			cout << "Max hits: " << dp[index].size() << endl;
			for (size_t i = 0; i < dp[index].size(); i++)
			{
				cout << dp[index][i] << endl;
			}
			if (T)
			{
				cout << endl;
			}
		}
	}
	return 0;
}

### Technical Implementation to Create a Supply Network #### 1. Data Collection and Integration - **Data Sources Identification**: Gather data from various sources such as suppliers' databases, inventory management systems, and customer relationship management (CRM) tools. For example, in a manufacturing supply network, data about raw material suppliers' production capacity, lead - times, and quality control metrics are crucial. ```python # Hypothetical code to represent data collection from different sources import pandas as pd supplier_data = pd.read_csv('supplier_data.csv') inventory_data = pd.read_excel('inventory_data.xlsx') crm_data = pd.read_json('crm_data.json') ``` - **Data Cleaning and Standardization**: Clean the collected data by removing duplicates, handling missing values, and standardizing data formats. This ensures consistency across the supply network. ```python # Cleaning supplier data supplier_data.drop_duplicates(inplace=True) supplier_data.fillna(method='ffill', inplace=True) ``` #### 2. Network Modeling - **Graph - Based Modeling**: Represent the supply network as a graph, where nodes are entities like suppliers, manufacturers, distributors, and customers, and edges represent the relationships (e.g., supply relationships). ```python import networkx as nx G = nx.Graph() # Adding nodes G.add_nodes_from(['Supplier1', 'Manufacturer', 'Distributor', 'Customer']) # Adding edges G.add_edge('Supplier1', 'Manufacturer') G.add_edge('Manufacturer', 'Distributor') G.add_edge('Distributor', 'Customer') ``` - **Mathematical Modeling**: Use optimization models such as linear programming to optimize the flow of goods and services in the supply network. For example, minimizing the total cost of transportation and inventory while meeting demand. #### 3. Software and Platform Selection - **Enterprise Resource Planning (ERP) Systems**: Implement an ERP system that integrates various business processes such as procurement, production, and sales. Popular ERP systems include SAP, Oracle, and Microsoft Dynamics. - **Supply Chain Management (SCM) Software**: Use specialized SCM software for functions like demand forecasting, inventory management, and logistics planning. Tools like Blue Yonder and JDA Software are well - known in this area. #### 4. Connectivity and Communication - **Application Programming Interfaces (APIs)**: Use APIs to connect different systems in the supply network. For example, an API can be used to connect a supplier's inventory system with a manufacturer's procurement system. ```python import requests # Hypothetical API call to get supplier inventory data response = requests.get('https://supplier_api.com/inventory') inventory = response.json() ``` - **Communication Protocols**: Adopt standard communication protocols such as Electronic Data Interchange (EDI) for secure and efficient data exchange between partners in the supply network. ### Methods to Create a Supply Network #### 1. Strategic Planning - **Define Objectives**: Clearly define the goals of the supply network, such as cost reduction, service level improvement, or sustainability. - **Partner Selection**: Select reliable suppliers, manufacturers, and distributors based on criteria like quality, cost, and delivery performance. #### 2. Pilot Projects - **Small - Scale Implementation**: Start with a small - scale pilot project to test the supply network design and processes. This helps in identifying and resolving issues before full - scale implementation. #### 3. Continuous Improvement - **Performance Monitoring**: Continuously monitor key performance indicators (KPIs) such as on - time delivery, inventory turnover, and customer satisfaction. - **Process Optimization**: Based on the performance analysis, optimize the supply network processes to improve efficiency and effectiveness.
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