Argthtjtr

I'm new with C++ and have problem with indicators

#include <iostream>

#include <stdlib.h>

#include <time.h>

using namespace std;



int * createTab(int size)

{

    int * wskTab;

    wskTab = new int [size];

    return wskTab;

}

void fill(int * mytab, int size)

{

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

        mytab[i]= rand()%(38-16)+16;

    }

}

void show(int * mytab, int size)

{

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

        coud<<mytab[i]<<"";

    }

    cout<<endl;

}

int * addElem(int size, int * mytab, int val)

{

    int * nwsk = new int [size+1);

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

        nwski[i] = mytab[i];

    }

    delete  mytab;}

    nwsk[size] = val;

    return nwsk;

}

int * removeElem (int size, int * mytab, int id)

{

    int * nwsk = new int [size -1];

    for(int i = ; i < id; i++) {

        nwski[i] = mytab[i];

    }

    for (int i = id+1; i < size; i++) {

        nwski[i-1] = mytab[i];

    }

    delete  mytab;

    return nwsk;

}

And now, how to:

1. Add element inside


2. Remove first and last element of table


3. Show piece of table


4. Upgrade piece of table