app0

#include <iostream>

void changeLines(int **matrix, int m, int n, int lineIndex)
{
    int *tempLine = new int[n];
    for (int i = 0; i < n; i++)
        tempLine[i] = matrix[m - 1][i];

    for (int i = 0; i < n; i++) {
        matrix[m - 1][i] = matrix[lineIndex][i];
        matrix[lineIndex][i] = tempLine[i];
    }

    delete[] tempLine;
}

int getExpectedLine(int **matrix, int m, int n)
{
    int maxZerosAmount = 0;
    int maxZerosAmountLineIndex = 0;

    for (int i = 0; i < m; i++) {
        int zerosAmount = 0;
        for (int j = 0; j < n; j++) {
            if (matrix[i][j] == 0)
                zerosAmount++;
        }

        if (zerosAmount > maxZerosAmount) {
            maxZerosAmount = zerosAmount;
            maxZerosAmountLineIndex = i;
        }
    }

    return maxZerosAmountLineIndex;
}

int main()
{
    int m, n;
    std::cout << "Enter matrix size: ";
    std::cin >> m >> n;

    int **matrix = new int *[m];
    for (int i = 0; i < m; i++) {
        matrix[i] = new int[n];

        std::cout << "Enter " << i << " line: ";
        for (int j = 0; j < n; j++) {
            std::cin >> matrix[i][j];
        }
    }

    int lineIndex = getExpectedLine(matrix, m, n);
    if (lineIndex != m - 1) {
        int **newMatrix = new int *[m];
        for (int i = 0; i < m; i++) {
            newMatrix[i] = new int[n];

            for (int j = 0; j < n; j++) {
                newMatrix[i][j] = matrix[i][j];
            }
        }

        changeLines(newMatrix, m, n, lineIndex);

        std::cout << "Result matrix: " << std::endl;
        for (int i = 0; i < m; i++) {
            for (int j = 0; j < n; j++) {
                std::cout << newMatrix[i][j] << ' ';
            }
            std::cout << std::endl;

            delete[] newMatrix[i];
        }
        delete[] newMatrix;
    } else {
        std::cout << "Max zeros amount at the last line" << std::endl;
    }

    std::cout << "Source matrix: " << std::endl;
    for (int i = 0; i < m; i++) {
        for (int j = 0; j < n; j++) {
            std::cout << matrix[i][j] << ' ';
        }
        std::cout << std::endl;
        delete[] matrix[i];
    }
    delete[] matrix;

    return 0;
}