an class="comment">/* Exponentiation by squaring.</span></div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;<span class="comment">*/</span></div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span class="keywordtype">int</span> ipow(<span class="keywordtype">int</span> base, <span class="keywordtype">int</span> exp)</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;{</div><div class="line"><a name="l00066"></a><