Question

Write a program that asks the user to enter an array of random numbers, then sort the numbers (ascending order), then print the new array, after that asks the user for a new two numbers and add them to the same array and keep the array organization. (c++ ) (using while and do while loops)

Answer 1

#include<iostream>
#include<stdlib.h>
using namespace std;
//method for sort the array using selection sort
void sort(int arr[],int size)
{
    int i,j,t;
    //loop for selection sort
    i=0;
   while(i<size)
    {
       j=i+1;
       do //do...while loop for inner loop
       {
          if(arr[i]>arr[j]) //condition for swap
          {
             t=arr[i]; //logic for swap
             arr[i]=arr[j];
             arr[j]=t;
               }
               j++;
       }while(j<size);
       i++;
   }
}
//method to print the array
void print(int arr[],int size)
{
   int i;
   i=0; //initialize i to 0
   //loop to print the array elements
   while(i<size)
   {
       cout<<" "<<arr[i]; //print the array elements
       i++;
   }
}
//driver program
int main()
{
   int arr[1000],n,i,a,b;//declare the array
   //ask user for number of elements
   cout<<endl<<"Enter the number of elements to input";
   cin>>n;
   i=0; //initialize i to 0
   while(i<n) //loop will continue for n times
   {
      arr[i]= rand() % 100 +1; //generate a number between 1 to 100 and assign it to array
      i++;
   }
   //display the array elements before sort
cout<<endl<<"Before sort the array elements are : \n";
print(arr,n);
sort(arr,n); //call to sort() method.
   //display the array elements after sort
cout<<endl<<"After sort the array elements are : \n";
print(arr,n);
//ask user to input two more elements
cout<<endl<<"Enter two number s to add into the array";
cin>>a>>b;
//assign the frst number to array
arr[n]=a;
//assign second number to array
arr[n+1]=b;
n=n+2; //update the number of elements

cout<<endl<<"\n*******AFTER ADDING OF TWO ELEMENTS*****\n";
//display the array elements before sort
cout<<endl<<"Before sort the array elements are : \n";
print(arr,n);
sort(arr,n);//call to sort() method.
   //display the array elements after sort
cout<<endl<<"After sort the array elements are : \n";
print(arr,n);

  
  
}

output