  or with a <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span><span class="identifier">state</span><span class="special">,</span><span class="identifier">time</span><span class="special">&gt;</span></code>
          as value type. They are all single pass iterators. In the following, we
          show a few examples of how to use those iterators together with std algorithms.
        </p>
<p>
</p