Answered Essay: Write a function named insertInArray that takes the following parameters:

Write a function named insertInArray that takes the following parameters:

listInput: a float array

capOfArray: capacity of the array

numItems: number of items currently in the array

index: index at which to insert the new item

newVal: value to insert into the array

If the array is at capacity then the function should return -1. Otherwise, insert newVal at index and return 0 for success.

int insertInArray(float listInput[ ], int capOfArray, int* numItems, int index, float newVal)

For example, if the array is {9, 2, 8, 3} and it has the capacity to add a new value of 5 at index 2, then the resulting array should be {9, 2, 5, 8, 3} and the function should return 0. The numItems variable will increment from 4 to 5.

(In c++ format)

Expert Answer


//****************C++ Code***************


using namespace std;

int insertInArray(float listInput[], int capOfArray,int numItems, int index, float newVal)


// Create the new array to store the array with new element

float insertedArray [numItems+1];

//if array is full then no place to insert, hence return -1



printf(“Array is full, no place to inset!”);

return -1;




for (int i=0; i<=numItems; i++)


//inser all the element before index to new array(no change)

if (i < index)

insertedArray[i] = listInput[i];

//insert the new val at index

else if (i == index)

insertedArray[i] = newVal;

//Now insert remaining element from original array to new array insertedArray


insertedArray[i] = listInput[i-1];


//print the inserted element

for(int i=0;i<numItems+1;i++)

printf(“%0.1f “,insertedArray[i]);

//return 0 for success

return 0;



int main()


//*******Test case 1**********

int capacity =5;

float listInput [capacity]={9.0,2.0,8.0,3.0};

int numItems =4;

int index =2;

int newVal=5;

// *********Test case 2*********

// int capacity =5;

// float listInput [capacity]={9.0,2.0,8.0,3.0};

// int numItems =5;

// int index =5;

// int newVal=5;

//call function to insertInArray and store the returned value in result variable

int result = insertInArray(listInput, capacity,numItems,index, newVal);



//*****************Output Test case for success***********

//*******Test case 1**********

// capacity =5;

// listInput [capacity]={9.0,2.0,8.0,3.0};

// numItems =4;

// index =2;

// newVal=5;

//*****************Output Test case for failure************

// *********Test case 2*********

// capacity =5;

// listInput [capacity]={9.0,2.0,8.0,3.0};

// numItems =5;

// index =5;

// newVal=5;

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