Function call
queries_fxn ( matrix , queries ) ; cout << " [ " ; for ( int i = 0 ; i < matrix . size ( ) ; i ++ ) { cout << " [ " ; for ( int j = 0 ; j < matrix [ i ] . size ( ) ; j ++ ) cout << matrix [ i ] [ j ] << " ▁ " ; if ( i == matrix . size ( ) - 1 ) cout << " ] " ; else cout << " ] , ▁ " ; } cout << " ] " ; }