software homework3

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1. 控制流图:

2. 当MAXPRIMES = 4 时,t1 不能查出错误而t2则会发生数组越界错误。

3. 当t3=(n=1)时不经过while循环体。

4.    点覆盖

  {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16}

  边覆盖

  {(1.2),(2,3),(3,4),(4,5),(5,6),(6,7),(7,5),(6,8),(8,9),(9,10),(9,11),(10,2),(11,2),(2,12),(12,13),(13,14),(14,15),(15,13),(13,16)}

  主路径覆盖

  {(1,2,3,4,5,6,7),

  (1,2,3,4,5,9,10),

  (1,2,3,4,5,9,11),

  (1,2,3,4,5,6,8,9,10),

  (1,2,3,4,5,6,8,9,11),

  (1,2,12,13,16),

  (1,2,12,13,14,15),

  (3,4,5,6,8,9,10,2,12,13,14,15),

  (3,4,5,6,8,9,10,2,12,13,16),

  (3,4,5,9,10,2,12,13,14,15),

  (3,4,5,9,11,2,12,13,14,15),

  (3,4,5,9,10,2,12,13,16),

  (3,4,5,9,10,2,12,13,16),

  (3,4,5,6,8,9,11,2,12,13,14,15),

  (3,4,5,6,8,9,11,2,12,13,16),

  (6,7,5,9,10,2,12,13,14,15),

  (6,7,5,9,10,2,12,13,16),

  (6,7,5,9,11,2,12,13,14,15),

  (6,7,5,9,11,2,12,13,16),

  (14,15,13,16),

  (13,14,15,13),

  (5,6,7,5),

  (2,3,4,5,6,8,9,10,2),

  (2,3,4,5,6,8,9,11,2),

  (2,3,4,5,9,10,2)

  (2,3,4,5,9,11,2)}

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