Insert elements of column to vector
max_val = mat [ 0 ] [ i ] NEW_LINE min_val = mat [ 0 ] [ i ] NEW_LINE for j in range ( 1 , N ) : NEW_LINE INDENT max_val = max ( max_val , mat [ j ] [ i ] ) NEW_LINE min_val = min ( min_val , mat [ j ] [ i ] ) NEW_LINE DEDENT