223: Algorithm to generate array of random numbers entirely different from each other

 

// algorithm to generate array of random numbers entirely different from each other

#include <iostream>
#include <ctime>
using namespace std;
int getNumber(int size)
{
    int random = rand() % size + 1;
    return random;
}
int *random(int size)
{
    int *temp = new int[size];
    int num = 0;
    while (num < size)
    {
        int number = getNumber(size);
        bool isInArray = false;
        for (int i = 0; i < num; i++)
        {
            if (temp[i] == number)
            {
                isInArray = true;
                break;
            }
        }
        if (!isInArray)
        {
            temp[num++] = number;
        }
    }
    return temp;
}

int main()
{
    srand(time(NULL));
    int size = 200;
    int *arr = random(size);

    for (int i = 0; i < size; i++)
    {
        cout << arr[i] << ' ';
    }

    return 0;
}


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