Question

I just need the code in c++ by using array and random number generation

1. Write a function called rollDice.

   1. This function emulates rolling two 6-sided dice

      1. Choose two random numbers between 1 and 6

      2. They should be random enough (pseudo-radom), not the same random number every time the function is run

   2. Add the numbers together and return the sum

      1. Note: it is not sufficient to merely randomly choose a number between 2 and 12, can you see why?

2. Write a main function that rolls two dice (calls rollDice) 1000 times and uses an array to keep track of the number of times each result (2-12) occurred. Main then prints out the results

   Hint: create an array with space for 11 integers (representing results 2-12). Initialize them all to 0, then add 1 to the proper location in the array for each dice roll.

3. Main should print out the values in the array separated by spaces all on a single line (use a for loop to accomplish this).

4. Submit your assignment as a single CPP file containing both the main and the function.

Answer 1

#include<iostream>
#include <stdlib.h> /* srand, rand */
#include <time.h> /* time */
using namespace std;

int rollDice(){
  
   int dice1,dice2;
   dice1=rand()%6+1;
   dice2=rand()%6+1;
   return dice1+dice2;
}

int main()
{
   srand (time(NULL));
   int sum[]={0,0,0,0,0,0,0,0,0,0,0};
   for(int i=0;i<1000;i++)
   {
       sum[(rollDice())-2]+=1;
   }
   for(int i=0;i<11;i++)
   {
       cout<<sum[i]<<" ";
   }
   return 0;
}