Search-Engine-Project-for-Data-Structures/get_possible_data_structures.cpp at main · TareqAlKushari/Search-Engine-Project-for-Data-Structures · GitHub

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#include <iostream>
#include <vector>
#include <string>
using namespace std;

// A function that takes an API as input and returns a list of data structures that can support it
vector<string> get_possible_data_structures(string api) {
  // A vector to store the possible data structures
  vector<string> result;

  // A flag to indicate if the API requires random access
  bool random_access = false;

  // A flag to indicate if the API requires sorting
  bool sorting = false;

  // A flag to indicate if the API requires insertion or deletion at any position
  bool insertion_deletion = false;

  // A flag to indicate if the API requires ordered data
  bool ordered_data = false;

  // Parse the API string and set the flags accordingly
  // This is a simplified example, you may need to use more sophisticated parsing techniques
  if (api.find("random access") != string::npos) {
    random_access = true;
  }
  if (api.find("sorting") != string::npos) {
    sorting = true;
  }
  if (api.find("insertion") != string::npos || api.find("deletion") != string::npos) {
    insertion_deletion = true;
  }
  if (api.find("ordered") != string::npos) {
    ordered_data = true;
  }

  // Filter out the data structures that are not suitable for the API
  // This is a simplified example, you may need to use more sophisticated filtering techniques
    if (!random_access && !sorting && !insertion_deletion && !ordered_data) {
        // No specific requirement, any data structure can be used
        result.push_back("array");
        result.push_back("vector");
        result.push_back("linked list");
        result.push_back("tree");
        result.push_back("hash table");
    } else if (random_access && !sorting && !insertion_deletion && !ordered_data) {
        // Only random access required, array, vector, and hash table can be used
        result.push_back("array");
        result.push_back("vector");
        result.push_back("hash table");
    } else if (!random_access && sorting && !insertion_deletion && !ordered_data) {
        // Only sorting required, linked list and tree can be used
        result.push_back("linked list");
        result.push_back("tree");
    } else if (!random_access && !sorting && insertion_deletion && !ordered_data) {
        // Only insertion or deletion required, linked list and hash table can be used
        result.push_back("linked list");
        result.push_back("hash table");
    } else if (!random_access && !sorting && !insertion_deletion && ordered_data) {
        // Only ordered data required, array, vector, linked list, and tree can be used
        result.push_back("array");
        result.push_back("vector");
        result.push_back("linked list");
        result.push_back("tree");
    } else if (random_access && sorting && !insertion_deletion && !ordered_data) {
        // Random access and sorting required, array and vector can be used
        result.push_back("array");
        result.push_back("vector");
    } else if (random_access && !sorting && insertion_deletion && !ordered_data) {
        // Random access and insertion or deletion required, vector and hash table can be used
        result.push_back("vector");
        result.push_back("hash table");
    } else if (random_access && !sorting && !insertion_deletion && ordered_data) {
        // Random access and ordered data required, array and vector can be used
        result.push_back("array");
        result.push_back("vector");
    } else if (!random_access && sorting && insertion_deletion && !ordered_data) {
        // Sorting and insertion or deletion required, linked list and tree can be used
        result.push_back(“linked list”); result.push_back(“tree”);
    } else if (!random_access && sorting && !insertion_deletion && ordered_data) {
        // Sorting and ordered data required, linked list and tree can be used
        result.push_back(“linked list”); result.push_back(“tree”);
    } else if (!random_access && !sorting && insertion_deletion && ordered_data) {
        // Insertion or deletion and ordered data required, linked list and tree can be used
        result.push_back(“linked list”); result.push_back(“tree”);
    } else if (random_access && sorting && insertion_deletion && !ordered_data) {
        // Random access, sorting, and insertion or deletion required, no suitable data structure exists
        result.clear();
    } else if (random_access && sorting && !insertion_deletion && ordered_data) {
        // Random access, sorting, and ordered data required, array and vector can be used
        result.push_back(“array”); result.push_back(“vector”);
    } else if (random_access && !sorting && insertion_deletion && ordered_data) {
        // Random access, insertion or deletion, and ordered data required, no suitable data structure exists
        result.clear();
    }

    // Rank the data structures based on their advantages and disadvantages for the API
    // This is a simplified example, you may need to use more sophisticated ranking techniques

    // Define a helper function that compares two data structures based on some criteria
    bool compare(string ds1,string ds2,string api){
        // For example: prefer vectors over arrays for frequent resizing,
        // prefer hash tables over other data structures for fast search,
        // prefer arrays over other data structures for minimal memory usage,
        // prefer trees over other data structures for balanced structure

        if(api.find(“resizing”)!=string::npos) {
            if(ds1==“vector”&&ds2==“array”) {
                return true;
            } else if(ds1==“array”&&ds2==“vector”) {
                return false;
            }
        }

        if(api.find(“search”)!=string::npos) {
            if(ds1==“hash table”&&ds2!=“hash table”) {
                return true;
            } else if(ds1!=“hash table”&&ds2==“hash table”) {
                return false;
            }
        }

        if(api.find(“memory”)!=string::npos) {
            if(ds1==“array”&&ds2!=“array”) {
                return true;
            } else if(ds1 != “array” && ds2 ==“array”) {
                return false;
            }
        }

        if(api.find(“balanced”)!=string::npos) {
            if(ds1==“tree”&&ds2!=“tree”) {
                return true;
            } else if(ds1!=“tree”&&ds2==“tree”) {
                return false;
            }
        }

        // If none of the criteria applies, return false by
        default (no preference)
        return false;
    }

    // Sort the vector of possible data structures using the helper function
    sort(result.begin(),result.end(),[&](string ds1,string ds2) { return compare(ds1,ds2,api); });

    // Return the vector of possible data structures
    return result;
}