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Mastering C++ Programming by Jeganathan Swaminathan

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Algorithms

The STL algorithms are powered by C++ templates; hence, the same algorithm works irrespective of what data type it deals with or independently of how the data is organized by a container. Interestingly, the STL algorithms are generic enough to support built-in and user-defined data types using templates. As a matter of fact, the algorithms interact with the containers via iterators. Hence, what matters to the algorithms is the iterator supported by the container. Having said that, the performance of an algorithm depends on the underlying data structure used within a container. Hence, certain algorithms work only on selective containers, as each algorithm supported by the STL expects a certain type of iterator.

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