//#include <stdafx.h>
#include "stdlib.h"
#include <iostream>
#include <iomanip>
using namespace std;


void arr_swap_columns  (int     **A,   int N1,  int N2) {
    int Temp;
    for (int k = 0; k < N2; k += 4)
        for (int i = 0; i < N1; i++) {
            if ((k + 2) < N2) {
                Temp = A[i][k];
                A[i][k] = A[i][k + 2];
                A[i][k + 2] = Temp;
            }
            if ((k + 3) < N2) {
                Temp = A[i][k + 1];
                A[i][k + 1] = A[i][k + 3];
                A[i][k + 3] = Temp;
            }
        }
}
void arr_swap_columns  (float   **A,   int N1,  int N2) {
    float Temp;
    for (int k = 0; k < N2; k += 4)
        for (int i = 0; i < N1; i++) {
            if ((k + 2) < N2) {
                Temp = A[i][k];
                A[i][k] = A[i][k + 2];
                A[i][k + 2] = Temp;
            }
            if ((k + 3) < N2) {
                Temp = A[i][k + 1];
                A[i][k + 1] = A[i][k + 3];
                A[i][k + 3] = Temp;
            }
        }
}
void arr_swap_columns  (char    **A,   int N1,  int N2) {
    char Temp;
    for (int k = 0; k < N2; k += 4)
        for (int i = 0; i < N1; i++) {
            if ((k + 2) < N2) {
                Temp = A[i][k];
                A[i][k] = A[i][k + 2];
                A[i][k + 2] = Temp;
            }
            if ((k + 3) < N2) {
                Temp = A[i][k + 1];
                A[i][k + 1] = A[i][k + 3];
                A[i][k + 3] = Temp;
            }
        }
}

void declare_2d_arr     (int     **&A,  int &N1, int *N2, char ch = 'A', bool re_enter = false) {

    if ((N1 < 1) || re_enter) {
    do {
        system("cls");
        cout << endl << "  int " << ch << "[";
        cin.clear();
        cin.sync();
    }
    while(!(cin >> N1) || (N1 < 1));
    }
    if ((*N2 < 1) || re_enter) {
    do {
        system("cls");
        cout << endl << "  int " << ch << "[" << N1 << "][";
        cin.clear();
        cin.sync();
    }
    while(!(cin >> *N2) || (*N2 < 1));
    }

    A = new int *[N1];
    for (int i = 0; i < N1; i++)
       A[i] = new int [*N2];

    system("cls");
    cout << endl << "  int " << ch << "[" << N1 << "][" << *N2 << "] was declared" << endl;

        for (int i = 0; i < N1; i++)
            for (int j = 0; j < *N2; j++)
                A[i][j] = 0;
}
void declare_2d_arr     (float   **&A,  int &N1, int *N2, char ch = 'A', bool re_enter = false) {

    if ((N1 < 1) || re_enter) {
    do {
    system("cls");
        cout << endl << "  float " << ch << "[";
        cin.clear();
        cin.sync();
    }
    while(!(cin >> N1) || (N1 < 1));
    }
    if ((*N2 < 1) || re_enter) {
    do {
    system("cls");
        cout << endl << "  float " << ch << "[" << N1 << "][";
        cin.clear();
        cin.sync();
    }
    while(!(cin >> *N2) || (*N2 < 1));
    }

    A = new float *[N1];
    for (int i = 0; i < N1; i++)
        A[i] = new float [*N2];

    system("cls");
    cout << endl << "  float " << ch << "[" << N1 << "][" << *N2 << "] was declared" << endl;

        for (int i = 0; i < N1; i++)
            for (int j = 0; j < *N2; j++)
                A[i][j] = 0.0;
}
void declare_2d_arr     (char    **&A,  int &N1, int *N2, char ch = 'A', bool re_enter = false) {

    if ((N1 < 1) || re_enter) {
    do {
    system("cls");
        cout << endl << "  char " << ch << "[";
        cin.clear();
        cin.sync();
    }
    while(!(cin >> N1) || (N1 < 1));
    }
    if ((*N2 < 1) || re_enter) {
    do {
    system("cls");
        cout << endl << "  char " << ch << "[" << N1 << "][";
        cin.clear();
        cin.sync();
    }
    while(!(cin >> *N2) || (*N2 < 1));
    }

    A = new char *[N1];
    for (int i = 0; i < N1; i++)
        A[i] = new char [*N2];

    system("cls");
    cout << endl << "  char " << ch << "[" << N1 << "][" << *N2 << "] was declared" << endl;

        for (int i = 0; i < N1; i++)
            for (int j = 0; j < *N2; j++)
                A[i][j] = '.';
}

void cout_2d_arr       (int     **A,   int N1,  int N2) {
    int max = A[0][0]; for (int i = 0; i < N1; i++) {for (int j = 0; j < N2; j++) if (A[i][j] > max) max = A[i][j];}

    int k = 1;          while (max > 10) {max = max / 10; k++;}

    for (int i = 0; i < N1; i++) {
        cout << "  ";
        for (int j = 0; j < N2; j++) {
            cout.width(k+1);
            cout << A[i][j] << " ";}
        cout << endl;}
}
void cout_2d_arr       (float   **A,   int N1,  int N2) {
    int max = (int)A[0][0]; for (int i = 0; i < N1; i++) {for (int j = 0; j < N2; j++) if ((int)A[i][j] > max) max = (int)A[i][j];}
    int k = 1;          while (max > 10) {max = max / 10; k++;}

    for (int i = 0; i < N1; i++) {
        cout << "  ";
        for (int j = 0; j < N2; j++) {
            cout << fixed << right;
            cout.precision(3);
            cout.width(k+5);
            cout << A[i][j] << " ";}
        cout << endl;}
}
void cout_2d_arr       (char    **A,   int N1,  int N2) {
    for (int i = 0; i < N1; i++) {
        cout << "  ";
        for (int j = 0; j < N2; j++) {
            cout.width(2);
            cout << A[i][j] << " ";}
        cout << endl;}
}

void cin_2d_arr        (int     **A,   int N1,  int N2) {
    for (int i = 0; i < N1; i++)
        for (int j = 0; j < N2; j++)
            do {
                system("cls");
                cout << endl << "  Input:" << endl << endl;
                cout_2d_arr(A, N1, N2);
                cout << endl << "   ";
                cin.clear();
                cin.sync();
            }
            while(!(cin >> A[i][j]));
            system("cls");
            cout << endl << "  Input:" << endl << endl;
            cout_2d_arr(A, N1, N2);
}
void cin_2d_arr        (float   **A,   int N1,  int N2) {
    for (int i = 0; i < N1; i++)
        for (int j = 0; j < N2; j++)
            do {
                system("cls");
                cout << endl << "  Input:" << endl << endl;
                cout_2d_arr(A, N1, N2);
                cout << endl << "   ";
                cin.clear();
                cin.sync();
            }
            while(!(cin >> A[i][j]));
            system("cls");
            cout << endl << "  Input:" << endl << endl;
            cout_2d_arr(A, N1, N2);
}
void cin_2d_arr        (char    **A,   int N1,  int N2) {
    for (int i = 0; i < N1; i++)
        for (int j = 0; j < N2; j++)
            do {
                system("cls");
                cout << endl << "  Input:" << endl << endl;
                cout_2d_arr(A, N1, N2);
                cout << endl << "   ";
                cin.clear();
                cin.sync();
            }
            while(!(cin >> A[i][j]));
            system("cls");
            cout << endl << "  Input:" << endl << endl;
            cout_2d_arr(A, N1, N2);
}



int main() {

    int N1 = 0, N2 = 0, Temp;

    int     **A;
    declare_2d_arr(A, N1, &N2, 'A', false);
    cout << endl << "  Enter the elements (one at time):" << endl << endl;
    system("pause");
    cin_2d_arr(A, N1, N2);
    arr_swap_columns(A, N1, N2);
    cout << endl << "  Result:" << endl << endl;
    cout_2d_arr(A, N1, N2);

    for (int i = 0; i < N1; i++)
       delete [] A[i];
    delete [] A;

    cout << endl;
    system("pause");

        float   **B;
    declare_2d_arr(B, N1, &N2, 'B', false);
    cout << endl << "  Enter the elements (one at time):" << endl << endl;
    system("pause");
    cin_2d_arr(B, N1, N2);
    arr_swap_columns(B, N1, N2);
    cout << endl << "  Result:" << endl << endl;
    cout_2d_arr(B, N1, N2);

    for (int i = 0; i < N1; i++)
       delete [] B[i];
    delete [] B;

    cout << endl;
    system("pause");

            char    **C;
    declare_2d_arr(C, N1, &N2, 'C', true);
    cout << endl << "  Enter the elements (one at time):" << endl << endl;
    system("pause");
    cin_2d_arr(C, N1, N2);
    arr_swap_columns(C, N1, N2);
    cout << endl << "  Result:" << endl << endl;
    cout_2d_arr(C, N1, N2);

    for (int i = 0; i < N1; i++)
       delete [] C[i];
    delete [] C;


    cout << endl << endl;
    system("pause");
    return 0;
}