C.产生均匀分布的随机数据

<p> <span style="color:windowtext;font-family:宋体;line-height:150%;">模拟计算中通常需要一些随机数，一种产生随机数据的方法可通过下式得到：</span><span style="line-height:150%;">&nbsp;</span> </p> <p class="MsoNormal" align="center" style="text-align:center;"> <span style="line-height:150%;">s_i+1= (s_i+ step)%mod</span> </p> <p class="MsoBodyText"> <span style="line-height:150%;font-family:宋体;color:windowtext;">式中的</span><span style="line-height:150%;font-family:宋体;color:windowtext;">“</span><span style="line-height:150%;color:windowtext;">%</span><span style="line-height:150%;font-family:宋体;color:windowtext;">”</span><span style="line-height:150%;font-family:宋体;color:windowtext;">表示求余操作符，利用该表达式可产生</span><span style="line-height:150%;color:windowtext;">[0, mod-1]</span><span style="line-height:150%;font-family:宋体;color:windowtext;">范围内的随机数。</span><span style="line-height:150%;color:windowtext;"></span> </p>

<p> <span style="font-size:10.5pt;font-family:宋体;">每一行包含两个整型数据，分别表示</span><span style="font-size:10.5pt;font-family:'Times New Roman', serif;">step(step &gt;=1)</span><span style="font-size:10.5pt;font-family:宋体;">和</span><span style="font-size:10.5pt;font-family:'Times New Roman', serif;">mod(mod &lt;=10⁵)</span><span style="font-size:10.5pt;font-family:宋体;">两个参数</span> </p>

<p> <span style="line-height:150%;font-family:宋体;">对应于输入参数的每一行，在第</span><span style="line-height:150%;">1</span><span style="line-height:150%;font-family:宋体;">～</span><span style="line-height:150%;">10</span><span style="line-height:150%;font-family:宋体;">列位置上以右对齐方式打印参数</span><span style="line-height:150%;">step</span><span style="line-height:150%;font-family:宋体;">的值，在第</span><span style="line-height:150%;">11</span><span style="line-height:150%;font-family:宋体;">～</span><span style="line-height:150%;">20</span><span style="line-height:150%;font-family:宋体;">列位置上以右对齐方式打印参数</span><span style="line-height:150%;">mod</span><span style="line-height:150%;font-family:宋体;">的值，接着在第</span><span style="line-height:150%;">25</span><span style="line-height:150%;font-family:宋体;">列开始以左对齐方式打印“</span><span style="line-height:150%;">Good Choice</span><span style="line-height:150%;font-family:宋体;">”</span><span style="line-height:150%;font-family:宋体;">或者</span><span style="line-height:150%;font-family:宋体;">“</span><span style="line-height:150%;">Bad Choice</span><span style="line-height:150%;font-family:宋体;">”</span><span style="line-height:150%;font-family:宋体;">。</span> </p> <p class="MsoNormal" style="text-indent:18.4pt;"> <span style="line-height:150%;"></span> </p>