Pls help c++.

//include the required packages

#include<iostream>

using namespace std;

//function declarations

void menuFunction();

void sum(int[],int[],int);

void remDiv(int[],int[],int);

//main function

int main(){

//function call to print menu

menuFunction();

}

//menu function

void menuFunction(){

int size,i,ch; //variables declaration

//prompt the user to enter the size of the array

cout<<"Enter the size of the arrays: ";

//read size of the arrays

cin>>size;

//array declarations

int a[size],b[size];

//prompt the user to enter the elements of first array

cout<<"Enter elements of first array:"<<endl;

//iterate a for loop

for (i=0;i<size;i++){

//read elements of first array

cin>>a[i];

}

//prompt the user to enter the elements of second array

cout<<"Enter elements of second array:"<<endl;

//iterate a for loop

for (i=0;i<size;i++){

//read elements of second array

cin>>b[i];

}

//while true

while(1)

{

//display menu

cout<<"1.print the summation\n2.print the remainder of the division"<<endl; cout<<"3.exit\nChoose your option:";

//read option from user

cin>>ch;

//pass option to switch

switch(ch)

{

case 1:

//print sum of the array using function call

sum(a,b,size);

break;

case 2:

//print the reminder of division using function call

remDiv(a,b,size);

break;

case 3:

//exit

exit(0);

break;

case 4:

//if user enter wrong option

cout<<"Choose correct option"<<endl;

}

}

}

//sum function

void sum(int a[],int b[],int size)

{

int i;

//declare third array

int x[size];

//print the statement

cout<<"The summation of two arrays is: ";

//iterate a for loop

for(i=0;i<size;i++)

{

/*calculate sum and store in third array*/

x[i]=a[i]+b[i];

//print third array element

cout<<x[i]<<" ";

}

cout<<endl;

}

//remDiv function

void remDiv(int a[],int b[],int size){

int i;

//declare third array

int x[size];

//print the statement

cout<<"The remainders of two arrays is: ";

//iterate a for loop

for(i=0;i<size;i++)

{

//calculate remainder and store in third array

x[i]=a[i]%b[i];

//print third array element

cout<<x[i]<<" ";

}

cout<<endl;

}

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