Question 1 (6 marks) Purpose: To practice using loops; to practice accumulating

Question

Question 1 (6 marks)
Purpose: To practice using loops; to practice accumulating values using loops

Degree of Difficulty: Easy

For this question, you're going to experiment some more with random numbers.

Write a program that uses a while loop to generate 100 different random numbers (the random numbers
will range from 1 to 100). The program should keep track of how many of the random numbers fall
within the following 3 ranges:

•     "Small": the number is less than 10
•     "Big": the number is greater than 90
•     "Medium": the number is between 10 and 90 (inclusive)

Once the loop is done, then program should of course print out the number of random numbers that
fell within each range. The following is an example of the output of your program.

It's time to make some random numbers! There were 8 small numbers.
There were 13 big numbers. There were 79 medium numbers.
Once you are sure your program is working, run your program 3 times to test it and copy the results
to a testing file that you will hand in.

Random Numbers Reminder

As a reminder from Assignment 3, you need the following infrastructure to use random numbers in
your program.

You need the following includes at the top:

#include <cstdlib>

#include <time.h>

The very first line of your main() function should be:

srand(time(NULL));

Finally, the following line of code will generate a random number from 1 to 100 and store it in a
variable called number.

int number = (rand() % 100) + 1;

Explanation / Answer

/**C++ program that generates 100 random numbres and count the values
within the range. If random number is less than 10, small
if random number greater than 90, big
if random number is greater than or equal to 10 and less than
or eqaul to 90 then medium . Then print the count of smakk,
big and medium count of random numbers*/

//header files
#include<iostream>
#include <cstdlib>
#include <time.h>
using namespace std;

int main()
{

   //set SMALL and BIG values
   int SMALL=10;
   int BIG=90;
      

   //set counters to zer
   int smallCount=0;
   int bigCount=0;
   int mediumCount=0;

   //set lenght value
   int LENGHT=100;  

   //seed a random number generator
   srand(time(NULL));

   //set index to zero
   int index=0;

   //run while loop from 1 to 100
   while(index<LENGHT)
   {
       //generate a random number in a range of 1 to 100.
       int number = (rand() % 100) + 1;

       //Check if numbre is less than SMALL
       if(number<SMALL)
           //increment the smallCount by one
           smallCount++;
       //Check if numbre is greater than BIG
       else if(number>BIG)
           //increment the bigCount by one
           bigCount++;
       //Check if numbre is greater than or equal
       //SMALL and less than or equal to BIG
       else if(number>=SMALL && number<=BIG)
           //increment the mediumCount by one
           mediumCount++;

       //incrememt the index by one
       index++;

   }

  
   cout<<"It's time to make some random numbers!"<<endl;
   //print the smallCount
   cout<<"There were "<< smallCount<<" small numbers."<<endl;
   //print the bigCount
   cout<<"There were "<<bigCount<<" big numbers."<<endl;
   //print the mediumCount
   cout<<"There were "<<mediumCount<<" medium numbers."<<endl;

   //pause the program output on console
   system("pause");
   return 0;
}

sample output:

Run1:

It's time to make some random numbers!
There were 10 small numbers.
There were 1 big numbers.
There were 89 medium numbers.

Run2:

It's time to make some random numbers!
There were 9 small numbers.
There were 11 big numbers.
There were 80 medium numbers.

Run3:

It's time to make some random numbers!
There were 7 small numbers.
There were 12 big numbers.
There were 81 medium numbers.

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