Question

Develop a system flowchart and then write a menu-driven C++ program that uses user-defined functions arrays, and a random number generator. Upon program execution, the screen will be cleared and the menu shown below will appear at the top of the screen and centered. The menu items are explained below. Help Smallest Quit H or h ( for Help ) option will invoke a function named help() which will display a help screen. The help screen(s) should guide the user how to interact with the program, type of data to be used, and what results would the program produce. Each help screen should remain on the monitor until the user strikes any key. Once the user completes reading the help() screens, striking any key will clear the screen and the menu is displayed again. The main() function will declare an array of 8 elements. The elements are of type float. The menu option S will ask the user for the actual number of elements for the array. The program must verify that the actual number of elements does not exceed 8 and is not a negative number or 0. Your code must check for these. S or s( for Smallest ) option will invoke a function named Smallest( ) which will prompt the user for the number of elements for the array to be examined using the function sizeOfArray( ) which will read and validate the desired array elements and returns it to the calling function. The program will then use the returned size of the array to fill the array using the random number generator functions shown at the end of this assignment. Your program will ask the user for the range of values for the elements of the array and uses these numbers in a random generator function to fill the array. Once the array is filled, the program will call the function findSmallest( ) which will find and return the smallest number in the array to the calling function. The program will then call the function frequency(), that will compute and return the frequency of occurrence of the smallest number. The program will then display the array elements, the smallest number, and its frequency of occurrence using the function display( ), in the format shown below. The output shown is for an array of five elements with an array identifier a. a[0] = xxxx.xx a[1] = xxxx.xx a[2] = xxxx.xx a[3] = xxxx.xx a[4] = xxxx.xx Smallest no. = xxxx.xx Frequency = xx

Note that for the array elements, two digits after the decimal point is required (i.e., 298.35) and the frequency of occurrence is of type integer.

The function prototypes to be used are as follows: void smallest(float s[], int size); where s is the original array declared in the main() function and size is the maximum array size specified (8 elements in our case). //gets the desired array size and returns it int sizeOfArray(void); //finds the smallest number in the array and returns it via the return statement.

float findSmallest(float s[], int myS); //where s is the specified array name and myS is the desired size of the array. //Finds the frequency of occurrence of the minimum number int frequency(float s[], float smallestNo, int myS); here, s is the desired source array, smallestNo is the smallest number found in the function findSmallest(), myS is the desired size of the array. The frequency of occurrence of the smallest number in the array is computed and returned via a return statement.

For the smallest number use x <= y when comparing two numbers. The function display() prototype is: void display(float s[], float smallestNo, int freq, int myS); where s is the desired array name, smallestNo is the smallest number in the array, freq is the frequency of occurrence of the smallest number, and myS is the desired size of the array.

The results should stay on the screen with the following prompt which will appear in the lower right corner of the screen: Strike any key to continue... Once the user has entered any key followed by the enter key, the screen will be cleared and the menu is displayed again. Q or q (for Quit) option will clear the screen and returns the control to the Visual Studio IDE

9a. Illegal inputs must be handled properly without terminating the program. 10. Adherence to the ANSI C++ required. 11. Do not use stdio.h and conio.h in this assignment and all other assignments. 12. Do not use any define in your program until the time that is required for class declaration header files. 13. No goto statements allowed in any program that you develop in this course.

Answer 1

Hi,

The problem has been resolved. All the methods as you mentioned have been developed successfully. The result should be show in two decimal point. I haven't mentioned many thing in help method. So you have to modify the data written in that method according to you.

Please find the running code screenshot below for better understanding. the code will run to infinity until unless you give instruction to quit. Screenshots are divided according menu.

Screenshots:

Code:

-------------------

#include <iostream>
#include <cmath>
#ifdef __cplusplus__
#include <cstdlib>
#else
#include <stdlib.h>
#endif
using namespace std;

void help(){
   cout<<"\nThis is the help!!! \nDetails about Smallest option\nSmallest(): which will prompt the user for the number of elements for the array to be examined using the function sizeOfArray( ) which will read and validate the desired array elements and returns it to the calling function.";
}

float round (float x)
{
return floor(x + 0.5f);
}

int sizeOfArray(){
   bool correct=false;
        int size;
        cout<<"\nActual number of elements for the array:\n";
        while(!correct){
            cin >> size;
            if(size>0 && size<=8)
                correct=true;
            else
                cout<<"\nActual number of elements must be between 1-8!!! Please enter again\n";
        }

    return size;
}
float findSmallest(float s[], int myS){

   float temp = s[0];
for(int i=0; i<myS; i++) {
if(temp>s[i]) {
temp=s[i];
}
}
return temp;

}
int frequency(float s[], float smallestNo, int myS){
   int count = 0;
for (int i=0; i < myS; i++)
if (s[i] == smallestNo)
count++;

return count;
}
void display(float s[], float smallestNo, int freq, int myS){

   //cout<<"\nDesired size of the array: "<<myS;
   //cout<<"\nSmallest Number: "<<smallestNo;
  
   cout<<"\nArray is: \n";

   for(int i=0;i<myS;i++){
       cout<<"a["<<i<<"] = "<<s[i]<<" ";
   }
   cout<<"\nFrequency "<<freq;
}
void smallest(float s[], int size){
   size= sizeOfArray();

   int low,high;
   cout<<"\nEnter min random num: \n";
   cin>>low;
   cout<<"\nEnter max random num: \n";
   cin>>high;

   for(int i=0;i<size;i++){

       float x = low + static_cast <float> (rand()) /( static_cast <float> (RAND_MAX/(high-low)));
       float rounded = std::floor((x * 100) + .5) / 100;
       s[i]=rounded;         
   }

   float smallest= findSmallest(s,size);
   //cout<<"\nSmallest: "<<smallest;
   int freq= frequency(s,smallest,size);
   //cout<<"\nFrequency: "<<freq;
   display(s,smallest, freq, size);

}

int main ()
{
  
char ch;
float arr[8];
int size=8;

   do{

   cout << "\n\nMenu - Options";
   cout<<"\nH/h for Help \nS/s for Smallest \nQ/q for Quit\n\n";
   cout << "Please select a option: \n";
    cin >> ch;

    cout<<ch;

    if(ch=='h' || ch=='H'){
        help();
        cout << "\n\n\n\nPress any key to continue...\n";
        cin >> ch;
        if (system("CLS")) system("clear");
    }

    else if(ch=='S' || ch=='s'){
        smallest(arr, size);
        cout << "\n\n\n\nPress any key to continue...\n";
        cin >> ch;
        if (system("CLS")) system("clear");

        }

    else if(ch=='Q' || ch=='q'){
        return 0;
    }
   
  
   }while(true);

return 0;
}

--------------------

Code flow chart:

The problem has been resolved, I hope you will like the solution. If you have any question or query regarding this problem or other, please comment below and give the positive rating.

Thank You!! Happy Learning!! Keep Chegging!!