I am woking in C++. The following is the problem: 35.10.1 (Dice rolls), with thi

Question

I am woking in C++. The following is the problem:

35.10.1 (Dice rolls), with this variation: Add code to calculate and print the number of times that the user rolls a 12 (as well as 6 and 7)

You will need to make three changes to the code:

declare a variable for the number of twelves (include the comment)

increment the variable whenever the roll total equals 12, and

display the total number of 12s rolled.

This is the given:

#include <iostream>
#include <cstdlib>

using namespace std;

int main(){
   int i = 0;         // Loop counter iterates numRolls times
   int numRolls = 0; // User defined number of rolls
   int numSixes = 0; // Tracks number of 6s found
   int numSevens = 0; // Tracks number of 7s found
   int die1 = 0;      // Dice values
   int die2 = 0;      // Dice values
   int rollTotal = 0; // Sum of dice values

   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 == 6) {
            numSixes = numSixes + 1;
         }
         else if (rollTotal == 7) {
            numSevens = numSevens + 1;
         }
         cout << endl << "Roll " << (i + 1) << " is "
              << rollTotal << " (" << die1
              << "+" << die2 << ")";
      }
    
      // Print statistics on dice rolls
      cout << endl << endl;
      cout << "Dice roll statistics:" << endl;
      cout << "6s: " << numSixes << endl;
      cout << "7s: " << numSevens << endl;
   }
   else {
      cout << "Invalid rolls. Try again." << endl;
   }

   return 0;

Explanation / Answer

Solution for Question 1:

Updated the code with by declareing variable twelve and added the value is for calculating die value..

See the below code for ..

#include <iostream>
#include <cstdlib>
#include <ctime>
using namespace std;
int main(){
int i = 0; // Loop counter iterates numRolls times
int numRolls = 0; // User defined number of rolls
int numSixes = 0; // Tracks number of 6s found
int numSevens = 0; // Tracks number of 7s found
int die1 = 0; // Dice values
int die2 = 0; // Dice values
int die3 = 0; // Dice values
int rollTotal = 0; // Sum of dice values
int twelves = 0; // Tracks number of 12s found

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;
die3 = rand() % 6 + 1;
rollTotal = die1 + die2 + die3;

// Count number of sixs and sevens
if (rollTotal == 6) {
numSixes = numSixes + 1;
}
else if (rollTotal == 7) {
numSevens = numSevens + 1;
}

       else if (rollTotal == 12) {
twelves = twelves + 1;
}

cout << endl << "Roll " << (i + 1) << " is "
<< rollTotal << " (" << die1
<< "+" << die2 << ")";
}

// Print statistics on dice rolls
cout << endl << endl;
cout << "Dice roll statistics:" << endl;
cout << "6s: " << numSixes << endl;
cout << "7s: " << numSevens << endl;
   cout << "12ss: " << twelves << endl;
}
else {
cout << "Invalid rolls. Try again." << endl;
}

return 0;

}

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