CPP algorithm selection - the process by which an algorithm is chosen from among a portfolio of potentially applicable algorithms, based on readily observable, especially compile-time, features of the input data set (see leyton-brown03). Variadic Templates (947)“ (EMCppSfe 2021)

CPP algorithm selection refers to the process of choosing the most efficient algorithm based on the problem requirements, input size, and performance constraints. Algorithms in CPP are often selected from standard libraries, such as STL (Standard Template Library), introduced in 1994, or custom implementations optimized for specific use cases. Choosing the right algorithm can significantly improve the efficiency of an application, especially when handling large datasets or performing computationally intensive tasks. CPP provides various sorting, searching, and data manipulation algorithms, each with different time and space complexities, which must be carefully considered based on the problem at hand.

For example, in cloud-based services, such as Google Cloud or AWS, algorithms are selected based on the scalability and reliability requirements. Sorting algorithms like quick sort or merge sort might be chosen depending on the dataset size, while search algorithms such as binary search or linear search are selected based on the data structure in use. CPP's extensive libraries and support for complex algorithmic structures allow developers to optimize applications for speed and memory usage, making the choice of algorithms critical in high-performance computing scenarios.