Question

Write a C++ function, smallestIndex, that takes as parameters an int array and its size and returns the index of the first occurrence of the smallest element in the array. Also, write a program to test your function.

You must write our commands in the middle:

Write a C++ Program:

#include <iostream>

using namespace std;

const int ARRAY_SIZE = 15;

void printArray(const int x[], int sizeX);

int smallestIndex(const int x[], int sizeX);

int main()

{

     int list[ARRAY_SIZE] = {56, 34, 67, 54, 23, 87, 66, 92, 15, 32,                    

                                            55, 54, 88, 22, 30};                                  

    …

    …

         YOUR CODE HERE

    …

    …

return 0;

}

//Function to print the array

void printArray(const int list[], int listSize)

{

    int index;

for (index = 0; index < listSize; index++)

        cout << list[index] << " ";

}

// Function to find and return the index of the

     // smallest element of an array

int smallestIndex(const int list[], int listSize)

{

    …

    …

         YOUR CODE HERE

    …

    …

}

Answer 1

I have completed the code in C++

#include <iostream>
using namespace std;

const int ARRAY_SIZE = 15;

void printArray(const int x[], int sizeX);
int smallestIndex(const int x[], int sizeX);

int main(){
    int list[ARRAY_SIZE] = {56, 34, 67, 54, 23, 87, 66, 92, 15, 32, 55, 54, 88, 22, 30};                                  
    
    printArray(list, ARRAY_SIZE);
     
    // printing the index of smallestElement 
    cout<<"\nThe index of the first occurence of smallest element is: "<<smallestIndex(list, ARRAY_SIZE);
    return 0;
}

//Function to print the array
void printArray(const int list[], int listSize){
    int index;
    for (index = 0; index < listSize; index++)
        cout << list[index] << " ";
}

// Function to find and return the index of the smallest element of an array
int smallestIndex(const int list[], int listSize){
    int smallestElement=1000000;
    
    // finding the smallestElement
    for(int i = 0; i<ARRAY_SIZE; i++){
        if(list[i]<smallestElement)
            smallestElement=list[i];
    }
    
    // finding the first occurence of smallestElement
    for(int i = 0; i<ARRAY_SIZE; i++){
        if(list[i]==smallestElement)
            return i;
    }
}

Here the smallest element is 15 and its index is 8 so the function is working perfectly fine.

i have added comments so that you can understand better.

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