Question

Using the Random, write a simulation that will "play" the California Super LOTTO. Your program logic

will allow the player to:

1)

Pick any 6 integer numbers from 1 - 70. Your logic should prevent the player

from selecting a value LESS than 1 or greater than 70. The logic should

prevent the player from selecting the SAME number (i.e. they cannot have

two or more of their selections be the SAME number).

2)

Display the players' 6 number selections on the CRT screen.

3)

Use the built in

rand

function to draw 6 numbers. This is the simulated

"balls" being picked by LOTTO (i.e.

ball = rand()% max_num + 1

;). You

will also need to set the seed for the random number algorithm:

srand( (unsigned)time( NULL ) );

4)

Determine the number of "matches" (those numbers that the player picked

that matches those that LOTTO drew).

5)

If you matched 0, 1 or 2 numbers, you win NO money (but print some

message such as "our schools WIN.").

6)

We’ll dispense with a Mega Number. You would probably wish to put the

logic in some sort of loop to ask the user whether they wish to play again

(clearing out the previous variables and arrays?)



If you match 3 numbers, you win $5.00.



If you match 4 numbers, you win $36.00.



If you match 5 numbers, you win $1,000.00 to $25,000.00 dollars (i.e.

random(25) + 1

).



If you match 6 numbers (NONE of them the BONUS) you win $1 million to $100 million

dollar (i.e.

random(100)

).

Tactical Hints:

1. Use a

pair

of one dimensional arrays of size 71. We ignore subscript 0, leaving 1 -

70. One array will "hold" the 6 numbers the player picked. The other array "holds"

the numbers LOTTO drew. Set all array location values of both arrays to 0. Set the

VALUE of one array’s location index location to 1 if the player selected the number

(i.e. they picked 2, therefore ARRAY subscript index location 2 has value 1). Set the

other array's location's value to 1 if LOTTO drew that number.

2. Compare both arrays to determine if a match occurred. If the same subscript location

on both arrays holds a 1, a match occurred. Use

for

loops to search through the

arrays.

3. Use a

switch

statement to determine the prize won based on the number of matches.

The number of matches is an integer.

This is an exercise in logic.

Answer 1

thanks for the question, here is the code in C

Comments given so that you understand which code does what.

=================================================================================

#include<time.h>

#include<stdio.h>

#include<stdlib.h>

# define max_num 70

int main(){

               

                int userNumbers[71];

                int randomNumbers[71];

                for(int i=0; i<71;i++){

                                userNumbers[i]=0;

                                randomNumbers[i]=0;

                }

                int userNumber=0;

                printf("WELCOME TO CALIFORNIA SUPPER LOTTO\n");

                printf("===================================\n");

               

                // below code takes in user numbers

                for(int number=1;number<=6;number++){

                                printf("\nEnter your number %d: ",number);

                                scanf("%d",&userNumber);

                                if(userNumber<1 || userNumber>70){

                                                printf("\nYou need to enter a number between 1 and 70 (both inclusive). Please try again");

                                                number--;

                                }else if(userNumbers[userNumber]==1) {

                                                printf("\nYou already choose this number. Please enter a different number.");

                                                number--;

                                }else{

                                                userNumbers[userNumber]=1;

                                }

                }

                // seed the random number

                srand((unsigned)time(NULL));

                // generate 6 different numbers

                for(int number=1;number<=6;number++){

                                int ball = rand()%max_num+1;

                                if(randomNumbers[ball]==1){

                                                number--;

                                }else{

                                                randomNumbers[ball]=1;

                                }

                }

                // find how many were exact matches

                int matches=0;

                for(int number=1;number<=max_num;number++){

                                if(userNumbers[number]==1 && randomNumbers[number]==1){

                                                matches+=1;

                                }

                }

               

                // print the random numbers

                printf("\nHERE ARE THE GENERATED NUMBERS");

                printf("\n------------------------------\n");

                for(int number=1;number<=max_num;number++){

                                if(randomNumbers[number]==1){

                                                printf("%d ",number);

                                }

                }

               

                // display the result

                switch (matches){

                                case 0:case 1:case 2:

                                                printf("\nYOU WIN NO MONEY!!\n");

                                                break;

                                                case 3:

                                                                printf("\nCONGRATULATIONS! YOU WIN $5.00!!\n");

                                                break;

                                                case 4:

                                                                printf("\nCONGRATULATIONS! YOU WIN $36.00!!\n");

                                                break;

                                                case 5:

                                                                printf("\nCONGRATULATIONS! YOU WIN $1,000 to $25,000 !!\n");

                                                break;

                                                case 6:

                                                                printf("\nCONGRATULATIONS! YOU WIN $ 1 MILLION TO $ 100 MILLION!!\n");

                }

}

=================================================================================