Driver Code
int main ( ) { int arr [ ] = { 5 , 9 , 1 , 8 } ; int brr [ ] = { 10 , 12 , 7 , 4 , 2 , 3 } ; int K = 3 ; int N = sizeof ( arr ) / sizeof ( arr [ 0 ] ) ; int M = sizeof ( brr ) / sizeof ( brr [ 0 ] ) ; cout << count_pairs ( arr , brr , N , M , K ) ; return 0 ; }