How can I find sum mean of 2d array with positive number and negative number in c
<p>How can I find sum mean of 2d array with positive number and negative number in c</p>

<pre><code>int data[4][5] = {
    {3,-6,1,-5,7},
    {-2,9,-3,5,4},
    {7,3,-4,0,-6},
    {9,-2,-5,8,3}
};

&gt;Sum of all positive number 
&gt;Mean of all positve number 
&gt;Sum of all negative number
&gt;Mean of all negative number
</code></pre>

<p>I'm freshman from university and I have final exam tomorrow please help me practice. Thanks! </p>