2.cpp

<p class="MsoNormal" style="text-align:left;" align="left"> <span style="font-size:12.0pt;line-height:125%;font-family:宋体;">编写程序，求</span><span style="font-size:12.0pt;line-height:125%;font-family:宋体;"></span><span style="font-size:12.0pt;line-height:125%;font-family:宋体;">s=a^(n)-<span style="font-size:12.0pt;line-height:125%;font-family:宋体;">a^(n-1)-<span style="font-size:12.0pt;line-height:125%;font-family:宋体;">a^(n-2)-....-a;</span></span><br /> </span> </p> <p class="MsoNormal" style="text-align:left;" align="left"> <span style="font-size:12.0pt;line-height:125%;font-family:宋体;">公式中<span>a</span>和<span>n</span>的值在<span>1</span>至<span>9</span>之间，<span>a</span>和<span>n</span>由键盘输入，<span>a</span>的<span>n</span>次方用长整型表示，先输入<span>a</span>，再输入<span>n</span>。<span></span></span> </p>

<p class="MsoNormal" style="text-align:left;" align="left"> <span style="font-size:12.0pt;line-height:150%;font-family:宋体;">输入两个整型数据<span>a</span>和<span>n</span>。每个数据用<span>1</span>个空格分隔 （多组输入数据）<span></span></span> </p>

<p class="MsoNormal" style="text-align:left;" align="left"> <span style="font-size:12.0pt;line-height:125%;font-family:宋体;">输出计算的<span>s</span>值（多组输出数据）<span></span></span> </p>