If element is present on the mid of the two rows
if ( mat [ i_low ] [ j_mid ] == x ) cout << " Found ▁ at ▁ ( " << i_low << " , " << j_mid << " ) " ; else if ( mat [ i_low + 1 ] [ j_mid ] == x ) cout << " Found ▁ at ▁ ( " << ( i_low + 1 ) << " , ▁ " << j_mid << " ) " ;