Question

Write the following task in C++

1) Write the definition of a function numOccurrences that searches for a character in a character array and returns the number of times it occurs in the array. The function has three formal parameters: a char array array, an int variable arraySize representing the size of the array, and a character variable letter representing the character to be searched for in the array.

2) Assume the array numbers is an int array of size 10 and the array has been initialized, write C++ statements to find and output the smallest element of the array as well as the position of the smallest element in the array

Answer 1

---------q1.cpp----------------

#include
using namespace std;

//This function searches for a character in a character array and returns the number of times it occurs in the array
int numOccurrences(char array[], int arraySize, char c)
{
   int count = 0;
   for(int i = 0; i < arraySize; i++)   //loop for all the indexes of array
   {  
       if(array[i] == c){   //check if chracter at index i matches c
           count++;       //then increment the count
       }
   }
   return count;   //return the count
}

int main()
{
   char array[10] = {'h', 'e', 'l', 'l', 'o', 'w', 'o', 'r', 'l', 'd'}; //declare char array
   cout << "The array is: ";      
   for(int i = 0; i < 10; i++)
   {
       cout << array[i] << ", ";       //print the array
   }

   //test the function numOccurrences by calling it
   cout << "\nThe number of occurrences of 'e' = " << numOccurrences(array, 10, 'e');
   cout << "\nThe number of occurrences of 'o' = " << numOccurrences(array, 10, 'o');
   cout << "\nThe number of occurrences of 'd' = " << numOccurrences(array, 10, 'd');
   cout << "\nThe number of occurrences of 't' = " << numOccurrences(array, 10, 't') << endl;
   return 0;
}

---------q2.cpp----------------

#include
using namespace std;

int main()
{
   int numbers[10] = {10, 12, 19, 22, 3, 33, 4444, 34, 9333, 93}; //int array of size 10 and the array has been initialized
   cout << "\nThe array is: ";
   for(int i = 0; i < 10; i++)
   {
       cout << numbers[i] << ", ";    //print the array
   }

   int smallest_element = numbers[0];   //initialize smallest element to index 0 element of array
   int smallest_index = 0;               //initialize smallest index to index 0

   for(int i = 1; i < 10; i++)           //loop from index 1 to the last index of array
   {
       if(numbers[i] < smallest_element){   //check if element at index i is smaller than the smallest_element
           smallest_element = numbers[i];   //update the smallest_element and smallest_index
           smallest_index = i;
       }
   }

   //print the smallest element and the index
   cout << "\nThe smallest element of the array is " << smallest_element << endl;
   cout << "The smallest element is present at index " << smallest_index << endl;
   return 0;
}

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