<span style="font-family:宋体;font-size:12pt;">输入</span><span style="font-size:12pt;">n</span><span style="font-family:宋体;font-size:12pt;">个同学的成绩，求他们的总成绩和平均成绩！</span><span style="font-size:12pt;"></span> 

<span style="font-family:宋体;font-size:12pt;">输入格式：</span><span style="font-size:12pt;"></span> 

<span style="font-family:宋体;font-size:12pt;">第一行，输入一个整数</span><span style="font-size:12pt;">n<span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>(2&lt;n&lt;100)</span> 

<span style="font-family:宋体;font-size:12pt;">第二行，共</span><span style="font-size:12pt;">n</span><span style="font-family:宋体;font-size:12pt;">个整数</span><span style="font-size:12pt;">a</span><span style="font-family:宋体;font-size:12pt;">。</span><span style="font-size:12pt;"><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>(0&lt;=a&lt;=100)</span> 

<span style="font-family:宋体;font-size:12pt;">输出格式：</span><span style="font-size:12pt;"></span> 

<span style="font-family:宋体;font-size:12pt;">输出有</span><span style="font-size:12pt;">2</span><span style="font-family:宋体;font-size:12pt;">行，</span> 

<span style="font-family:宋体;font-size:12pt;">第一是总分，</span> 

<span style="font-family:宋体;font-size:12pt;">第二行是平均分。（保留</span><span style="font-size:12pt;">1</span><span style="font-family:宋体;font-size:12pt;">位小数）</span><span style="font-size:12pt;"></span> 

<span style="font-size:12pt;"></span>

<span style="font-family:宋体;font-size:12pt;">输入</span><span style="font-family:宋体;font-size:12pt;">样例：<span></span></span> 

<span style="font-size:12pt;">5</span> 

<span style="font-size:12pt;">100 90 84 100 100</span> 

<span style="font-family:宋体;font-size:12pt;">输出</span><span style="font-family:宋体;font-size:12pt;">样例：</span><span style="font-size:12pt;"></span> 

<span style="font-size:12pt;">474</span> 

<span style="font-size:12pt;">94.8</span> 

四年级题目-循环语句练习题