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| <blockquote> | | <blockquote> |
− | "Recursive algorithms are particularly appropriate when the underlying problem or the data to be treated are defined in recursive terms."<ref>{{harvnb|Wirth|1976|p=127}}</ref>
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− | "当底层问题或要处理的数据以递归方式定义时,递归算法特别合适。"<ref>{{harvnb|Wirth|1976|p=127}}</ref> | + | |
| + | "当底层问题或要处理的数据以递归方式定义时,递归算法特别合适。"<ref>Wirth, Niklaus (1976). Algorithms + Data Structures = Programs. Prentice-Hall. p. 126. ISBN 978-0-13022418-7.</ref> |
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| </blockquote> | | </blockquote> |