lab2_4

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

using namespace std;

void chooseInput(int& inputType)
{
    bool incorrect;
    string line;
    do
    {
        incorrect = false;
        cout << "Do you want to input from file? (y/n)" << endl;
        cin >> line;
        if (line != "Y" && line != "y" && line != "N" && line != "n")
        {
            incorrect = true;
            cout << "Enter valid answer" << endl;
        }
    } while (incorrect);
    if (line == "N" || line == "n")
        inputType = 1;
    else
        inputType = 0;
}

string inputFileLocation()
{
    bool incorrect = false;
    string location = "";
    cout << "Enter file location:" << endl;
    cin >> location;
    ifstream file(location);
    if (file.is_open())
    {
        cout << "File opened successfully\n";
        return location;
    }
    else
    {
        cout << "File with this location is not found" << endl;
    }
    file.close();
}

void getArrayFromFile(int** arrays, int& size)
{
    bool incorrect = false;
    int j;
    string line;
    ifstream file(inputFileLocation());
    file.clear();
    file.seekg(0, ios::beg);
    for (int i = 0; i < size; i++)
    {
        for (j = 0; j < size; j++)
        {
            file >> arrays[i][j];
        }
    }
    getline(file, line, '\n');
    file.close();
}

void outputToFile(int** arrays, int& size)
{
    ofstream file(inputFileLocation());
    for (int i = 0; i < size; i++)
    {
        for (int j = 0; j < 3; j++)
        {
            file << arrays[i][j] << endl;
        }
        cout << endl;
    }
}

void getArrayFromConsole(int** array, int& size)
{
    int j;
    cout << "Enter the matrix\n";
    for (int i = 0; i < size; i++)
    {
        for (j = 0; j < size; j++)
        {
            cout << "\nenter the element number [" << i + 1 << "|" << j + 1 << "]: ";
            cin >> array[i][j];
        }
    }
}

int dimensionInput()
{
    const int MAX_VALUE = 5;
    const int MIN_VALUE = 1;
    int size = 0;
    bool isIncorrect;
    do
    {
        cin >> size;
        isIncorrect = false;
        if (size < MIN_VALUE || size > MAX_VALUE)
        {
            isIncorrect = true;
            cout << "Please enter a natural value less than six\n";
        }
    } while (isIncorrect);
    return size;
}

void deleteZeroStrings(int** arrays, int& size, int previousSize)
{
    int i = 0;
    int j;
    int prexSize = size;
    bool zeroFounded;
    while (i < size) {
        zeroFounded = false;
        j = 0;
        while ((j < previousSize & (!zeroFounded))) {
            if (arrays[i][j] == 0) {
                zeroFounded = true;
                for (int p = i; p < size - 1; p++) {
                    arrays[p] = arrays[p + 1];
                }
                size--;
                i--;
            }
            j++;
        }
        i++;
    }
}

void print(int** arrays, int& size , int previousSize)
{
    for (int i = 0; i < size; i++)
    {
        for (int j = 0; j < previousSize; j++)
            cout << arrays[i][j] << " ";
        cout << endl;
    }
}

int main()
{
    setlocale(LC_ALL, "RUSSIAN");
    cout << "Данная программа удаляет строки массива , содержащие нулевые элементы.\n";
    int chosenInput;
    chooseInput(chosenInput);
    cout << "Enter the matrix size\n";
    int size = dimensionInput();
    int** matrix = new int* [size];
    for (int i = 0; i < size; i++)
        matrix[i] = new int[size];
    if (chosenInput == 0)
    {
        getArrayFromFile(matrix, size);
    }
    else
    {
        getArrayFromConsole(matrix, size);
    }
    cout << endl;
    cout << "Original matrix" << endl;
    int previousSize = size;
    print(matrix, size, previousSize);
    double* variablesArray = new double[size];
    deleteZeroStrings(matrix, size, previousSize);
    cout << endl << "Modified matrix" << endl;
    print(matrix, size, previousSize);
    outputToFile(matrix, size);
}