Question

Using C++ create a lotto program

Lottery

Design a program that simulates a lottery.

Requirements:  The program should have an array of 5 integers named lottery and should generate a random number in the range of 1 through 99 for each element of the array. The user should enter five digits, which should be stored in an integer array named user. The program is to compare the corresponding elements in the two arrays and keep a count of the digits that match.  No global variables can be used.

The program should contain separate functions for separate tasks such as input, processing, and output. The function used for input should allow the user to enter the 5 choices into the user array, validating each entry before storing it into the array. You should display the user’s choices as well as the winning lottery numbers correctly labeled. The function that does the processing should search the user array for each of the 5 numbers contained in the lottery array, incrementing a counter when they match, and returning the number of matches when complete. The function used for output should determine the winnings according to the following chart:

                1 match = $5

                2 matches = $15

                3 matches = $50

                4 matches = $100

                5 matches = $500

Note: Order selected does not matter when comparing user numbers to selected lottery numbers. It is assumed that the user will pick 5 different numbers.

Extra for Experts: Modify the program so that a 6^th number is selected as the Powerball. To match the Powerball, your last choice must match the last choice of the winning numbers. The new winning schedule adds:

                Powerball = $10

                1 match + Powerball = $25

                2 matches + Powerball = $75

                3 matches + Powerball = $200

                4 matches + Powerball = $1000

                5 matches + Powerball = $50,000

Answer 1

#include 
#include

using namespace std;

// this function generates the lottery array and takes input for user array
int fun_input(int lottery[],int user[])
{
    // generating the lottery array
    for (int i=0;i<5;i++)
    {
        int num = (rand() % (99 - 1 + 1)) + 1;
        //cout<>x;
        if(x>=1 && x<=99)
            user[i]=x;
        else
            return -1;
    }

    return 0;
}

// this function calculates the number of matches between lottery array and user array at corresponding indexes
int fun_process(int lottery[],int user[])
{
    int cnt=0;
    for(int i=0;i<5;i++)
        if(lottery[i]==user[i])
        cnt++;

    return cnt;
}

// this function outputs the prize money as per the matches
void fun_output(int match)
{
    if(match==1)
        cout<<"\nCongrats you won $5";
    else if(match==2)
        cout<<"\nCongrats you won $15";
    else if(match==3)
        cout<<"\nCongrats you won $50";
    else if(match==4)
        cout<<"\nCongrats you won $100";
    else if(match==5)
        cout<<"\nCongrats you won $500";
    else
        cout<<"\nSorry you didn't win\n";
}

int main()
{
    int lottery[5],user[5];
    int x=fun_input(lottery,user);
    
    // this indicates incorrect user input
     if(x==-1)
        cout<<"Incorrect user entry\n";
     else
     {
         int cnt=fun_process(lottery,user);
         fun_output(cnt);
     }

     return 0;
}

"C:\Users\Rounak\3D Objects\rfes.exe" Input the user entries: 1 23 45 67 33 Sorry you didn't win execution time : 8.073 s Process returned 0 (0x0) Press any key to continue.

O "C:\Users\Rounak\3D Objects\rfes.exe" Input the user entries: 2 4 6 99 1 Sorry you didn't win execution time : 5.749 s Process returned 0 (0x0) Press any key to continue.

"C:\Users\Rounak\3D Objects\rfes.exe" Input the user entries: 1 3 5 66 100 Incorrect user entry Process returned 0 (0x0) Press any key to continue. execution time : 14.031 s

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