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A Comparative Study of STL Container Performance in C++17
¹ ² Department of Computer Science, P.V.G.'s College of Science and Commerce, Savitribai Phule Pune University, Maharashtra, India.
Published Online: May-August 2026
Pages: 29-35
This study presents an empirical performance evaluation of key C++ Standard Template Library (STL) containers, including std::vector, std::list, std::deque, std::set, and std::unordered_set. The experiments were conducted on a Windows platform using the MSVC compiler under both optimized (/O2) and non-optimized (/Od) configurations. Performance was measured across four fundamental operations— insertion, traversal, search, and deletion—using datasets ranging from 1,000 to 500,000 elements. The results demonstrate significant variation in runtime behavior depending on container type and compiler optimization level. The findings provide practical insights for selecting appropriate STL containers in performance-critical applications.
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