<?php
    $args = array(
        'posts_per_page'   => -1,
        'post_type'        => 'advanced_ads',
    );
    $the_query = new WP_Query( $args );
    ?>
<?php if ($the_query->have_posts()) :
        $i = 1;
        while ($the_query->have_posts()) : the_post();
// my other logic