15 |
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| continue |
16 |
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| if then | |
17 |
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| continue |
18 |
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| //generating the next layer of the searching tree | |
19 |
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| for all in such that do | |
20 |
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21 |
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22 |
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23 |
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24 |
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| if then |
25 |
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26 |
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27 |
| return QAbNI |