多道2.txt

操作系统 程序实现一个虚拟机模拟多道的运行环境

<input>
<unit>
<program>A</program>
<step>0,8,cpu</step>
<step>8,15,dev1</step>
<step>15,20,cpu</step>
<step>20,30,dev1</step>
</unit>
<unit>
<program>B</program>
<step>0,10,dev1</step>
<step>10,14,cpu</step>
<step>14,25,dev2</step>
<step>25,30,cpu</step>
</unit>
<unit>
<program>C</program>
<step>0,7,cpu</step>
<step>7,17,dev2</step>
<step>17,22,cpu</step>
<step>22,28,dev1</step>
<step>28,30,cpu</step>
</unit>
</input>