// C++ program to Find the two repeating
// elements in a given array
#include <bits/stdc++.h>
using namespace std;
void printTwoRepeatNumber(int arr[], int size)
{
int i, j;
cout << "Repeating elements are ";
for (i = 0; i < size; i++) {
for (j = i + 1; j < size; j++) {
if (arr[i] == arr[j]) {
cout << arr[i] << " ";
break;
}
}
}
}
int main()
{
int arr[] = { 4, 2, 4, 5, 2, 3, 1 };
int arr_size = sizeof(arr) / sizeof(arr[0]);
printTwoRepeatNumber(arr, arr_size);
return 0;
}