Considering cache efficiency, which STL container will provide the fastest element access and iteration in most cases? 

  • std::list 
  • std::deque 
  • std::vector 
  • std::set
std::vector is a dynamic array implementation. Due to its contiguous memory storage, it provides the best cache locality among the listed STL containers. This leads to faster element access and iteration, especially when compared to non-contiguous storage containers like std::list or node-based containers like std::set.
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