Find the two repeating elements

 



// C++ program to Find the two repeating 

// elements in a given array 

#include<bits/stdc++.h> 

using namespace std; 


void printRepeating(int arr[], int size) 

{ 

int i, j; 

printf(" Repeating elements are "); 

for(i = 0; i < size; i++) 

for(j = i + 1; j < size; j++) 

if(arr[i] == arr[j]) 

cout << arr[i] << " "; 

} 


// Driver Code 

int main() 

{ 

int arr[] = {4, 2, 4, 5, 2, 3, 1}; 

int arr_size = sizeof(arr)/sizeof(arr[0]); 

printRepeating(arr, arr_size); 

} 


// This code is contributed by Shivi_Aggarwal 


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