Question

C++ programming please

Write a program that will display random numbers in order from low to high.

1. Declare an integer array of size 100.
   Ask the user how many numbers to work with (n).
   It can be less than 100.

2. Generate random numbers from 10 to 50.

3. Write the random numbers to an output file named random.dat.
   Close the file.

4. Open random.dat for input and read the data values into your array.
   Pass your array to a function named bubbleSort, to sort them.
   Gordon will show you the bubble-sort algorithm.

5. Write the sorted array to an output file named ordered.dat. 

Our Bubble sort algorithm.


thank you 

Answer 1

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Code:

#include<iostream>

#include<fstream>

#include<cstdlib>

#include<ctime>

using namespace std;

//bubble sort program

void bubbleSort(int numberArray[], int count)

{

    int i, j,temp;

    for (i = 0; i < count-1; i++)

    {

        for (j = 0; j < count-i-1; j++)

        {

            if (numberArray[j] > numberArray[j+1])

            {

                temp = numberArray[j];

                numberArray[j] = numberArray[j+1];

                numberArray[j+1]= temp;

            }

        }

    }

}

//main driver program

int main(){

   

    int numberArray[100], number, count;

    ofstream outFile;

    ifstream inFile;

   

  //ask the user for number of integers

    std::cout << "Enter how many numbers (less than 100): ";

    cin >> count;

   

    //if count > 100 then return

    if(count > 100)

    {

        std::cout << "Number should not be greater than 100" << std::endl;

        return -1;

    }

  

   //open file for reading

   outFile.open("random.dat");

   //seeding the srand with time

   srand (time(0));

   //generate random numbers between 10 to 50

   for (int i = 0; i < count; i++) {

       

        number = rand() % 40 + 11;

        outFile << number << endl;

   }

   

    //close the file

    outFile.close();

   

    //open the same file for reading into array

    inFile.open("random.dat");

   int index =0;

    while(inFile){

        inFile >> numberArray[index];

        index++;

    }

   

    //close the input file

    inFile.close();

    //call bubble sort function

    bubbleSort(numberArray,count);

   

    outFile.open("ordered.dat");

    //write it to outFile

    for (int i = 0; i < count; i++) {

        outFile << numberArray[i] << endl;

    }

   

    return 0;

}

========screen shot of the code ========

Output: