#160;    <span class="keywordtype">int</span> grid_size = 0, </div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    <span class="keywordtype">int</span> block_size = 0) {</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;    <span class="keywordflow">if</span> (!grid_size || !block_size) {</div><div class="line"><a name="l00103"></a><span class="lineno">  103<