# C++ Program to Implement Sets Assignment Solution

July 11, 2024
William E.
🇮🇹 Italy
C++
Key Topics
• Instructions
• Requirements and Specifications
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## Instructions

Objective

Writing a program to implement sets in C++ can be a valuable learning experience. Sets are containers that store unique elements in no particular order, making them useful for various applications. By utilizing the standard template library (STL) in C++, you can easily create and manipulate sets. If you need help with your C++ assignment focused on set implementation or any related concepts, feel free to ask for guidance and clarification.

## Requirements and Specifications

Source Code

```#include #include #include #include #include #include "Set.h" #include #ifndef MAX_FILE_LENGTH #define MAX_FILE_LENGTH 255 #endif // MAX_FILE_LENGTH using namespace std; /** * Read the input set from the input stream, and output the subsets * to the output stream. */ void get_subsets(istream& i1, ostream& o) { Set set1; set1.scan(i1); // read the set from the input file set1.print(o, "A="); // print the set to the output file /* Please put your code here. */ o << "Subsets of A:" << std::endl; // Loop from 0 to 2^n-1 where n is the size of the set int n = set1.getsize(); int n_subsets = pow(2, n); for(int i = 0; i < n_subsets; i++) { o << "{"; for(int j = 0; j < n; j++) { if(i & (1 << j)) { // binary operator o << set1.getelements()[j]; if(j < n-1) { o << ","; } } } o << "}"; if(i < n_subsets-1) { o << ","; } else { o << "."; } o << std::endl; } // Finally, write the number of subsets o << "There are " << pow(2, set1.getsize()) << " subsets of A."; // TODO: get all the subsets of the input set and print the result } /* * This program accepts three command line arguments: * argv[1] is for the path to input file * argv[2] is for the path to the output file */ int main(int argc, char* argv[]) { char file1[MAX_FILE_LENGTH], file2[MAX_FILE_LENGTH]; // file1 is for the input, file2 is for the output strcpy(file1, argv[1]); strcpy(file2, argv[2]); ifstream i1 (file1); ofstream o (file2); if (i1.is_open() && o.is_open()) { get_subsets(i1, o); i1.close(); o.close(); } else { cout << "Unable to open the file(s)." << endl; } } ```

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