Count pairs with Bitwise | C ++ program to count pair with bitwise - AND as even number ; Function to count number of pairs EVEN bitwise AND ; variable for counting even pairs ; find all pairs ; find AND operation to check evenpair ; return number of even pair ; Driver Code
#include <iostream> NEW_LINE using namespace std ; int findevenPair ( int A [ ] , int N ) { int i , j ; int evenPair = 0 ; for ( i = 0 ; i < N ; i ++ ) { for ( j = i + 1 ; j < N ; j ++ ) { if ( ( A [ i ] & A [ j ] ) % 2 == 0 ) evenPair ++ ; } } return evenPair ; } int main ( ) { int a [ ] = { 5 , 1 , 3 , 2 } ; int n = sizeof ( a ) / sizeof ( a [ 0 ] ) ; cout << findevenPair ( a , n ) << endl ; return 0 ; }