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来自「浙江大学计算机学院数据结构课程的教学课件」· HTM 代码 · 共 61 行
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<b><font face="Arial, Helvetica, sans-serif" size="4" color="#FF0000">calculation of earliest times</font><font face="Arial, Helvetica, sans-serif" size="4" color="#000000">
if activity ai is represented by edge<i><k,l >:</i> </font></b></pre>
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<pre><b><font face="Arial, Helvetica, sans-serif" size="4" color="#000000"><font color="#FF0000"><i> early( i ) </i></font>= earliest [ k ]
<font color="#FF0000"><i> late ( i )</i> </font>= latest [ l ] - duration of activity ai</font></b></pre>
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<pre><b><font face="Arial, Helvetica, sans-serif" size="4" color="#000000"><i>
earliest [ 0 ] </i>= 0
<i>earliest [ j ] </i> = <font color="#FF0000"><img src="IMAGE/max.gif" width="38" height="22" align="middle"> { earliest [ i ] + duration of < i, j > }</font>
<i> P(j) is the set of immediate predecessors of j</i>
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<pre align="left"><b><font face="Arial, Helvetica, sans-serif" size="4" color="#000000"><font color="#FF0000"> calculation of latest times</font></font></b></pre>
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<td width="442"><b><font face="Arial, Helvetica, sans-serif" size="4" color="#000000">latest
[ n -1 ] = earliest [ n - 1 ] ( start)</font></b></td>
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<pre align="left"><b><font face="Arial, Helvetica, sans-serif" size="4" color="#000000">latest [ j ] = <img src="IMAGE/min.gif" width="36" height="27" align="middle">{ latest [ i ] - duration of < j,i > }
<i><font color="#0033CC"> S(j) is the set of vertices adjacent from vertex j,
S(j) is the set of immediate successors of j
</font></i></font></b></pre>
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