vv

11111 #include <iostream>
using namespace std;

int main() {
    int someNumbers[7] = {3, 7, 2, 6, 5, 8, 5 };

    int i = 6;

    do {
        cout << someNumbers[i] << endl;
        --i;
    } while(i >= 0); // Correct the loop condition

    return 0;
}

#include <iostream>
using namespace std;

int main() {
    int someNumbers[7] = {1, 1, 2, 3, 5, 8, 5 };

    for (int i = 6; i >= 0; --i) {
        cout << someNumbers[i] << endl;
    }

    return 0;
}







2222222 #include <iostream>
#include <vector>
#include <string>

using namespace std;

int main() {
    vector<string> words;
    string input;

    cout << "Enter words (type ZZZ to stop):" << endl;

    while (true) {
        cin >> input;
        if (input == "ZZZ") {
            break;
        } else {
            if (input != "ZZZ") {
                input[0] = toupper(input[0]); // Convert the first character to uppercase
                words.push_back(input);
            }
        }
    }

    int size = words.size();

    if (size == 0) {
        cout << "There is no middle word" << endl;
    } else if (size % 2 == 1){
        int middleIndex = size / 2;
        cout << "The middle word is " << words[middleIndex] << endl;
    } else {
        cout << "The two early words are " << words[0] << " " << words[1] << endl; // Add space between the two words
    }

    return 0;
}







33333 

Write function prototypes appropriate to these comments:
/家*
* openInputFile
* \param[in, out]
* \param[in]
* \precondition
* \postcondition
* \return
**/
opens a file for input based on the given filename ifs is the stream to be opened
filename a string containing the filename ifs is declared in the calling function
ifs is in a good state for reading data (if successful) bool true if the operation was successful
* openOutputFile
opens a file for input based on the given filename
* \param[in, out]
ofs is the stream to be opened
* Iparam[in]
filename a string containing the filename
* \precondition
ofs is declared in the calling function
* \postcondition
ofs is in a good state for writing data (if successful)
* \return
bool true if the operation was shrcessful
ま/
/=8
* writeFile
param[in, out]
Sparam[in]
\precondition postcondition
writes the contents of the uniquelordList to an output 
file stream ofs is the target stream to write uniquewordlist is an unordered_map‹string, int> 
to be written ofs is declared in the calling function and in good state ofs has recieved the uniqueWordlist and is in a good state (if successful)


#include <iostream>
#include <fstream>
#include <unordered_map>
#include <string>

/**
 * Opens a file for input based on the given filename.
 * \param[in, out] ifs The stream to be opened.
 * \param[in] filename A string containing the filename. 
 * \precondition ifs is declared in the calling function.
 * \postcondition ifs is in a good state for reading data (if successful).
 * \return bool True if the operation was successful.
 */
bool openInputFile(std::ifstream& ifs, const std::string& filename);

/**
 * Opens a file for output based on the given filename.
 * \param[in, out] ofs The stream to be opened.
 * \param[in] filename A string containing the filename.
 * \precondition ofs is declared in the calling function.
 * \postcondition ofs is in a good state for writing data (if successful).
 * \return bool True if the operation was successful.
 */
bool openOutputFile(std::ofstream& ofs, const std::string& filename);

/**
 * Writes the contents of the uniqueWordList to an output file stream in CSV format.
 * Each word and its count appear on individual lines with the word and count separated by a comma.
 * For example:
 *   four,4
 *   three,3
 *   two,2
 *   one,1
 * \param[in, out] ofs The target stream to write in CSV format.
 * \param[in] uniqueWordList An unordered_map<string, int> to be written.
 * \precondition ofs is declared in the calling function and in good state.
 * \postcondition ofs has received the uniqueWordList and is in a good state (if successful).
 */
void writeCSVFile(std::ofstream& ofs, const std::unordered_map<std::string, int>& uniqueWordList) {
    for (const auto& entry : uniqueWordList) {
        ofs << entry.first << "," << entry.second << std::endl;
    }
}

int main() {
    std::ifstream inputFileStream;
    std::ofstream outputFileStream;
    std::unordered_map<std::string, int> uniqueWordList;

    if (openInputFile(inputFileStream, "input.txt")) {
        // Process input and populate uniqueWordList
        // ...

        if (openOutputFile(outputFileStream, "output.csv")) {
            writeCSVFile(outputFileStream, uniqueWordList);
            outputFileStream.close();
        } else {
            std::cerr << "Error opening output file." << std::endl;
        }

        inputFileStream.close();
    } else {
        std::cerr << "Error opening input file." << std::endl;
    }

    return 0;
}





44444
#include <fstream>

ifstream inputFile;

inputFile.open("input.txt");

if (inputFile.is_open()) {
    // Read from the file using inputFile
    // ...

    inputFile.close();
} else {
    // Handle the case when the file couldn't be opened
}




55555 

Write the code to:
• declare an appropriate file stream variable for output
• call the openouputFile() function correctly
• call the writefile() function if openouputFile ( worked
Assume that the program will always open the file "sample.csv do not change function name

#include <iostream>
#include <fstream>
#include <unordered_map>
#include <string>

bool openOutputFile(std::ofstream& ofs, const std::string& filename);

void writeCSVFile(std::ofstream& ofs, const std::unordered_map<std::string, int>& uniqueWordList) {
    for (const auto& entry : uniqueWordList) {
        ofs << entry.first << "," << entry.second << std::endl;
    }																									
}

int main() {
    std::ofstream outputFileStream("sample.csv");

    if (outputFileStream.is_open()) {
        std::unordered_map<std::string, int> uniqueWordList;

        // ... (populate uniqueWordList with data)

        writeCSVFile(outputFileStream, uniqueWordList);

        outputFileStream.close();
    } else {
        std::cerr << "Error opening output file." << std::endl;
    }

    return 0;
}

6666666

Write the definition code for the openinputFile() function. Recall the comments for this function:
* openInputFile
opens a file for input based on the given filename
* \param[in,out] ifs is the stream to be opened
* \param[in]
filename a string containing the filename
* \precondition
ifs is declared in the calling function
* \postcondition
ifs is in a good state for reading data (if successful)
* (return
bool true if the operation was successful 


#include <fstream>

bool openInputFile(std::ifstream& ifs, const std::string& filename) {
    ifs.open(filename);

    if (ifs.is_open()) {
        return true;
    } else {
        std::cerr << "Error opening input file: " << filename << std::endl;
        return false;
    }
}





777777

Write the definition code for the openinputfile) function. Recall the comments for this function:
* openoutputFile opens a file for input based on the given filenane
* \paran[in, out]
ofs is the stream to be opened
* \param[in]
filename a strins containing the filename
• \precondition
ofs is declaned in the calling function
• \postcondition
ofs is in a good state for writing data (if successful)
* return
bool true if the operation was successful


#include <fstream>

bool openOutputFile(std::ofstream& ofs, const std::string& filename) {
    ofs.open(filename);

    if (ofs.is_open()) {
        return true;
    } else {
        std::cerr << "Error opening output file: " << filename << std::endl;
        return false;
    }
}




88888888


Write the definition code for the openinputFiled function. Recall the comments for this function
* writerile
* (param[in,out]
* \param[in]
* \precondition
# \postcondition
* (return
writes the contents of the uniquewordlist to an output file stream ofs is the target stream to write uniquewordList is an unordered_map‹string, int> to be written ofs is declared in the calling function and in good state ofs has recieved the uniquelordlist and is in a good state (if successful) nothing
• The format of the file should be comma separated value (CSV) format.
* Each word and its count should appear on individual lines with the
* word and the count separated byla comma.
* For example:
* Four, 4.
*three,3
* two, 2
• one, 1


#include <fstream>
#include <unordered_map>

bool openOutputFile(std::ofstream& ofs, const std::string& filename) {
    ofs.open(filename);
    if (ofs.is_open()) {
        return true;
    } else {
        std::cerr << "Error opening output file: " << filename << std::endl;
        return false;
    }
}

void writeFile(std::ofstream& ofs, const std::unordered_map<std::string, int>& uniqueWordList) {
    auto it = uniqueWordList.begin();
    while (it != uniqueWordList.end()) {
        ofs << it->first << "," << it->second << std::endl;
        ++it;
    }
}

int main() {
    std::ofstream outputFileStream;
    if (openOutputFile(outputFileStream, "output.csv")) {
        std::unordered_map<std::string, int> uniqueWordList;
        // Populate uniqueWordList (assume it is filled with data)
        writeFile(outputFileStream, uniqueWordList);
        outputFileStream.close();
    } else {
        std::cerr << "Error opening output file." << std::endl;
    }
    return 0;
}




#include <fstream>
#include <unordered_map>

bool openOutputFile(std::ofstream& ofs, const std::string& filename) {
    ofs.open(filename);
    if (ofs.is_open()) {
        return true;
    } else {
        std::cerr << "Error opening output file: " << filename << std::endl;
        return false;
    }
}

void writeFile(std::ofstream& ofs, const std::unordered_map<std::string, int>& uniqueWordList) {
    for (const auto& entry : uniqueWordList) {
        ofs << entry.first << "," << entry.second << std::endl;
    }
}

int main() {
    std::ofstream outputFileStream;
    if (openOutputFile(outputFileStream, "output.csv")) {
        std::unordered_map<std::string, int> uniqueWordList;
        // Populate uniqueWordList (assume it is filled with data)
        writeFile(outputFileStream, uniqueWordList);
        outputFileStream.close();
    } else {
        std::cerr << "Error opening output file." << std::endl;
    }
    return 0;
}





999999999

#pragma once




#include <iostream>
#include <fstream>
#include <vector>

using namespace std;

struct Record {
    string title;
    string artist;
    int year;
};

class Library {
public:
    Library(int splitYear); // Constructor
    void add(const Record& newRecord); // Function to add a new Record
    bool writeToFileNamed(const string& fileName); // Function to write to a file
    // Additional member functions can be declared here

private:
    int splitYear; // Member variable to store the split year
    vector<Record> modernRecords; // List for modern Records
    vector<Record> classicRecords; // List for classic Records
};





101010101010101010101010

#include "Library.h"

Library::Library(int splitYear) : splitYear(splitYear) {
    // Constructor implementation
}

void Library::add(const Record& newRecord) {
    if (newRecord.year >= splitYear) {
        // Add to the modernRecords list
        modernRecords.push_back(newRecord);
    } else {
        // Add to the classicRecords list
        classicRecords.push_back(newRecord);
    }
}

bool Library::writeToFileNamed(const string& fileName) {
    ofstream outputFile(fileName);

    if (outputFile.is_open()) {
        // Write modernRecords to the file
        for (const auto& record : modernRecords) {
            outputFile << record.title << "," << record.artist << "," << record.year << endl;
        }

        // Write classicRecords to the file
        for (const auto& record : classicRecords) {
            outputFile << record.title << "," << record.artist << "," << record.year << endl;
        }

        outputFile.close();
        return true;
    } else {
        return false;
    }
}