# Odd and Even Numbers Using Functions in C++

A simple program that will ask the user how many items to process and then it will accept a series of an integer numbers and then our program will list down the even and odd numbers using functions in C++ programming language.

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Program Listing

``````// Written By: Mr. Jake R. Pomperada, MAED-IT
// Date : November 21, 2010 Sunday
// Tool : C++

#include <iostream>

using namespace std;

// Global Variables

int a=0,r=0,data=0,b=0;
int values[10];

void get_data();
void display_even();
void display_odd();

void get_data(void)
{
cout << "\tOdd and Even Numbers Using Functions in C++";
cout << "\n\n";
cout << "How Many Numbers : ";
cin >> data;
cout << "\n";
for (b=1; b <= data; b++)
{
cout << "Enter Item No. "
<< b <<  " :";
cin >> b[values];
}
}

void display_even(void)
{

cout << "\n\n";
cout << "List of Even Numbers : ";
cout << "\n\n";
for (a=1; a<=data; a++) {
r = a[values] % 2;
if (r ==0) {
cout << " " <<a[values]
<< " ";
}

}
}

void display_odd(void)
{
cout << "\n\n";
cout << "List of Odd Numbers : ";
cout << "\n\n";
for (a=1; a<=data; a++) {
r = a[values] % 2;
if (r !=0) {
cout << " " <<a[values]
<< " ";
}
}
}
main() {

get_data();
display_even();
display_odd();
cout << "\n\n";
system("pause");
}

``````