tell me a different program in which function,array,loops and structure are used? i present it on tuesday

You do the work. We help you fix it. Don't ask us to do your homework for you - that is cheating! :-(

program different from what?

How about a program containing a function that creates an array of structures and loops over it?

Unfortunately, it's not clear from your question what is the exact processing required.

Please can you specify what you want more clearly - and then show a REAL attempt at answering the question - it's clear to anyone who's done any programming teaching that what you've shown in your question is the answer to some other assignment.

Here I am giving some examples of basic programs that you asked for. Check them out.

// function example
#include <iostream>
using namespace std;

int addition (int a, int b)
{
  int r;
  r=a+b;
  return r;
}

int main ()
{
  int z;
  z = addition (5,3);
  cout << "The result is " << z;

//Array Example

#include <iostream>
using namespace std;

#include <iomanip>
using std::setw;

int main ()
{
   int n[ 10 ]; // n is an array of 10 integers

   // initialize elements of array n to 0          
   for ( int i = 0; i < 10; i++ )
   {
      n[ i ] = i + 100; // set element at location i to i + 100
   }
   cout << "Element" << setw( 13 ) << "Value" << endl;

   // output each array element's value                      
   for ( int j = 0; j < 10; j++ )
   {
      cout << setw( 7 )<< j << setw( 13 ) << n[ j ] << endl;
   }

   return 0;
}

/*  For loop Example            */

#include<iostream>
#include<conio.h>

using namespace std;

int main()
{

     // Variable Declaration
     int a;

     // Get Input Value
     cout<<"Enter the Number :";
     cin>>a;

     //for Loop Block
     for (int counter = 1; counter <= a; counter++)
     {
         cout<<"Execute "<<counter<<" time"<<endl;
     }

     // Wait For Output Screen
     getch();
     return 0;
 }
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