Solve SLAR

#include <iostream>
#include <cmath>

using namespace std;

double** readMatrix(int n, char c) {
    double** matrix = new double*[n];

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

    cout << endl << "Enter matrix " << c << " [" << n << "x" << n << "]:" << endl;

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

    return matrix;
}

double* readArray(int n, char c) {
    double* array = new double[n];

    cout << endl << "Enter array " << c << " [" << n << "]:" << endl;

    for (int i = 0; i < n; i++) {
        cin >> array[i];
    }

    return array;
}

void solve(double** A, double* B, int n, double EPS) {
    double prevX[n] = { 0. }, X[n] = { 0. }, d;
    int i = 0;

    cout << endl;

    do {
        cout << "Iteration :: " << i << "\t   >>\tx = {";

        for (int i = 0; i < n; i++) {
            prevX[i] = X[i];

            if (fabs(X[i]) > EPS) {
                cout << X[i];
            } else {
                cout << 0;
            }

            if (i != n - 1) {
                cout << ", ";
            }
        }

        cout << "}";

        for (int i = 0; i < n; i++) {
            X[i] = B[i];

            for (int j = 0; j < n; j++) {
                if (i != j) {
                    if (j < i) {
                        X[i] += -1 * A[i][j] * X[j];
                    } else {
                        X[i] += -1 * A[i][j] * prevX[j];
                    }
                }
            }

            X[i] /= A[i][i];
        }

        d = fabs(X[0] - prevX[0]);

        for (int i = 1; i < n; i++) {
            if (fabs(X[i] - prevX[i]) > d) {
                d = fabs(X[i] - prevX[i]);
            }
        }

        cout << "\t   >>\td = " << d;

        if (d < EPS) {
            cout << " < EPS";
        }

        cout << endl;

        i++;
    } while(d >= EPS);

    cout << endl << "RESULT :: x = {";

    for (int i = 0; i < n; i++) {
        cout << X[i];

        if (i != n - 1) {
            cout << ", ";
        }
    }

    cout << "}" << endl;
}

int main() {

    double EPS;
    int n;

    cout << "Enter n :: ";

    cin >> n;

    double** A = readMatrix(n, 'A');

    double* B = readArray(n, 'B');

    cout << endl << "Enter EPS: ";
    cin >> EPS;

    solve(A, B, n, EPS);

    for (int i = 0; i < n; i++) {
        delete[] A[i];
    }

    delete[] A;
    delete[] B;

    return 0;
}