app1

#include <iostream>

void transform(int **matrix, int n, int lineIndex)
{
    for (int i = 0; i < n; i++) {
        matrix[lineIndex][i] *= lineIndex;
    }
}

int getExpectedLine(int **matrix, int n)
{
    int minIndex = 0;
    int minElement = matrix[0][n - 1];

    for (int i = 0; i < n; i++) {

        if (matrix[i][n - 1 - i] < minElement) {
            minElement = matrix[i][n - 1 - i];
            minIndex = i;
        }
    }

    return minIndex;
}

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

    int **matrix = new int *[n];
    for (int i = 0; i < n; 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, n);
    std::cout << "Result line: " << lineIndex << std::endl;

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

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

    transform(newMatrix, n, lineIndex);

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

        delete[] newMatrix[i];
    }
    delete[] newMatrix;

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

    return 0;
}