Question

Required in C++ I'm asked to: Print a histogram in which the total number of times the dice rolls equals each possible value is displayed by printing a character like * that number of times. Below is my current code. I am not allowed to use arrays or anything too advanced as I just started the class. I would really appreciate the help as I've been stuck on it for a while now. I can only get it to print the number followed by the asterisk but it's supposed to print for number 2 - 12.

#include <iostream>

#include <cstdlib>

#include <ctime>

using namespace std;

int main(){

int i = 0; // Loop counter iterates numRolls times

int numRolls; // User defined number of rolls

int numTwos;

int numThrees;

int numFours;

int numFives;

int numSixes; // Tracks number of 6s found

int numSevens; // Tracks number of 7s found

int numEights;

int numNines;

int numTens;

int numElevens;

int numTwelves;

int die1; // Dice values

int die2; // Dice values

int rollTotal;// Sum of dice values

  

  

numTwos = 0;

numThrees = 0;

numFours = 0;

numFives = 0;

numSixes = 0;

numSevens = 0;

numEights = 0;

numNines = 0;

numTens = 0;

numElevens = 0;

numTwelves = 0;

  

numRolls = 1;

  

while (numRolls >= 1 && numRolls != 0) {

cout << "Enter number of rolls: " << endl;

cin >> numRolls;

  

srand(time(0));

  

if (numRolls >= 1) {

// Roll dice numRoll times

for (i = 0; i < numRolls; ++i) {

die1 = rand() % 6 + 1;

die2 = rand() % 6 + 1;

rollTotal = die1 + die2;

  

  

// Count number of sixs and sevens

if (rollTotal == 2) {

numTwos = numTwos + 1;

}

else if (rollTotal == 3) {

numThrees = numThrees + 1;

}

else if (rollTotal == 4) {

numFours = numFours + 1;

}

else if (rollTotal == 5) {

numFives = numFives + 1;

}

else if (rollTotal == 6) {

numSixes = numSixes + 1;

}

else if (rollTotal == 7) {

numSevens = numSevens + 1;

}

else if (rollTotal == 8) {

numEights = numEights + 1;

}

else if (rollTotal == 9) {

numNines = numNines + 1;

}

else if (rollTotal == 10) {

numTens = numTens + 1;

}

else if (rollTotal == 11) {

numElevens = numElevens + 1;

}

else if (rollTotal == 12) {

numTwelves = numTwelves + 1;

}

cout << endl << "Roll " << (i + 1) << " is " << rollTotal << " (" << die1

<< "+" << die2 << ")";

}

// Print statistics on dice rolls

cout << endl << endl;

cout << "Dice roll statistics:" << endl;

cout << "2s: " << numTwos << endl;

cout << "3s: " << numThrees << endl;

cout << "4s: " << numFours << endl;

cout << "5s: " << numFives << endl;

cout << "6s: " << numSixes << endl;

cout << "7s: " << numSevens << endl;

cout << "8s: " << numEights << endl;

cout << "9s: " << numNines << endl;

cout << "10s: " << numTens << endl;

cout << "11s: " << numElevens << endl;

cout << "12s: " << numTwelves << endl;

  

cout << endl << endl;

  

cout << "Dice Histogram: " << endl;

  

if (numTwos >= 0) {

for (i = 1; i <= numTwos; i++) {

cout << "2: ";

cout << "*";

}

}

cout << endl;

  

}

else {

cout << "Invalid rolls. Try again." << endl;

}

cout << "Do you wish to continue rolling? [Press 1 to proceed or 0 to quit]" << endl;

cin >> numRolls;

}

return 0;

}

DiceStatisticsEnhanced LuisGurrolaArenivas Roll 79 1s 7 (5+2) Roll 80 is 7 (6+1) Dice roll statistics: 2s: 3 3s: 5 4s: 5 5s: 18 6s: 24 7s: 22 8s: 21 9s: 15 10s: 10 11s: 5 12s: 2 Dice Histogram: 2: *2: *2: * Do you wish to continue rolling? [Press 1 to proceed or 0 to quit] All Output

Answer 1

If you have any doubts, please give me comment...

#include <iostream>

#include <cstdlib>

#include <ctime>

using namespace std;

int main()

{

    int i = 0;    // Loop counter iterates numRolls times

    int numRolls; // User defined number of rolls

    int numTwos;

    int numThrees;

    int numFours;

    int numFives;

    int numSixes;  // Tracks number of 6s found

    int numSevens; // Tracks number of 7s found

    int numEights;

    int numNines;

    int numTens;

    int numElevens;

    int numTwelves;

    int die1;      // Dice values

    int die2;      // Dice values

    int rollTotal; // Sum of dice values

    numTwos = 0;

    numThrees = 0;

    numFours = 0;

    numFives = 0;

    numSixes = 0;

    numSevens = 0;

    numEights = 0;

    numNines = 0;

    numTens = 0;

    numElevens = 0;

    numTwelves = 0;

    numRolls = 1;

    while (numRolls >= 1 && numRolls != 0)

    {

        cout << "Enter number of rolls: " << endl;

        cin >> numRolls;

        srand(time(0));

        if (numRolls >= 1)

        {

            // Roll dice numRoll times

            for (i = 0; i < numRolls; ++i)

            {

                die1 = rand() % 6 + 1;

                die2 = rand() % 6 + 1;

                rollTotal = die1 + die2;

                // Count number of sixs and sevens

                if (rollTotal == 2)

                {

                    numTwos = numTwos + 1;

                }

                else if (rollTotal == 3)

                {

                    numThrees = numThrees + 1;

                }

                else if (rollTotal == 4)

                {

                    numFours = numFours + 1;

                }

                else if (rollTotal == 5)

                {

                    numFives = numFives + 1;

                }

                else if (rollTotal == 6)

                {

                    numSixes = numSixes + 1;

                }

                else if (rollTotal == 7)

                {

                    numSevens = numSevens + 1;

                }

                else if (rollTotal == 8)

                {

                    numEights = numEights + 1;

                }

                else if (rollTotal == 9)

                {

                    numNines = numNines + 1;

                }

                else if (rollTotal == 10)

                {

                    numTens = numTens + 1;

                }

                else if (rollTotal == 11)

                {

                    numElevens = numElevens + 1;

                }

                else if (rollTotal == 12)

                {

                    numTwelves = numTwelves + 1;

                }

                cout << endl

                     << "Roll " << (i + 1) << " is " << rollTotal << " (" << die1

                     << "+" << die2 << ")";

            }

            // Print statistics on dice rolls

            cout << endl

                 << endl;

            cout << "Dice roll statistics:" << endl;

            cout << "2s: " << numTwos << endl;

            cout << "3s: " << numThrees << endl;

            cout << "4s: " << numFours << endl;

            cout << "5s: " << numFives << endl;

            cout << "6s: " << numSixes << endl;

            cout << "7s: " << numSevens << endl;

            cout << "8s: " << numEights << endl;

            cout << "9s: " << numNines << endl;

            cout << "10s: " << numTens << endl;

            cout << "11s: " << numElevens << endl;

            cout << "12s: " << numTwelves << endl;

            cout << endl

                 << endl;

            cout << "Dice Histogram: " << endl;

            if (numTwos >= 0)

            {

                cout << " 2 : ";

                for (i = 1; i <= numTwos; i++)

                    cout << "*";

                cout << endl;

            }

            if (numThrees >= 0)

            {

                cout << " 3 : ";

                for (i = 1; i <= numThrees; i++)

                    cout << "*";

                cout << endl;

            }

            if (numFours >= 0)

            {

                cout << " 4 : ";

                for (i = 1; i <= numFours; i++)

                    cout << "*";

                cout << endl;

            }

            if (numFives >= 0)

            {

                cout << " 5 : ";

                for (i = 1; i <= numFives; i++)

                    cout << "*";

                cout << endl;

            }

            if (numSixes >= 0)

            {

                cout << " 6 : ";

                for (i = 1; i <= numSixes; i++)

                    cout << "*";

                cout << endl;

            }

            if (numSevens >= 0)

            {

                cout << " 7 : ";

                for (i = 1; i <= numSevens; i++)

                    cout << "*";

                cout << endl;

            }

            if (numEights >= 0)

            {

                cout << " 8 : ";

                for (i = 1; i <= numEights; i++)

                    cout << "*";

                cout << endl;

            }

            if (numNines >= 0)

            {

                cout << " 9 : ";

                for (i = 1; i <= numNines; i++)

                    cout << "*";

                cout << endl;

            }

            if (numTens >= 0)

            {

                cout << "10 : ";

                for (i = 1; i <= numTens; i++)

                    cout << "*";

                cout << endl;

            }

            if (numElevens >= 0)

            {

                cout << "11 : ";

                for (i = 1; i <= numElevens; i++)

                    cout << "*";

                cout << endl;

            }

            if (numTwelves >= 0)

            {

                cout << "12 : ";

                for (i = 1; i <= numTwelves; i++)

                    cout << "*";

                cout << endl;

            }

        }

        else

        {

            cout << "Invalid rolls. Try again." << endl;

        }

        cout << "Do you wish to continue rolling? [Press 1 to proceed or 0 to quit]" << endl;

        cin >> numRolls;

    }

    return 0;

}

Roll 77 is 10 (4+6) Roll 78 is 4 (2+2) Roll 79 is 5 (1+4) Roll 80 is 4 (1+3) Dice roll statistics: 2s: 3 3s: 4 4s: 12 5s: 6 6s: 13 7s: 13 8s: 12 9s: 7 10s: 4 11s: 4 12S: 2 Dice Histogram: 2 ** 3 *** 4 ** 5 ** 6 * 7 * 8: 9 * 10: **** 11: *** 12 ** Do you wish to continue rolling? [Press 1 to proceed or 0 to quit] 0