How do I binary search with algorithms with std::vector?

Binary search is a fast searching algorithm that works on sorted arrays or vectors. It divides the search interval in half repeatedly until the target value is found or the interval is empty. In C++, you can utilize the `` header which provides the `std::binary_search` function to determine if an element exists in a vector. Below is an example demonstrating how to perform a binary search on a `std::vector`.

#include #include #include int main() { std::vector numbers = {1, 3, 5, 7, 9, 11, 13, 15, 17, 19}; int target = 7; // Perform binary search bool found = std::binary_search(numbers.begin(), numbers.end(), target); if (found) { std::cout << "Element " << target << " found in the vector." << std::endl; } else { std::cout << "Element " << target << " not found in the vector." << std::endl; } return 0; }

binary search std::vector C++ algorithms search algorithms C++ standard library

Related Questions

How do I avoid rehashing overhead with std::set in multithreaded code?

How do I find elements with custom comparators with std::set for embedded targets?

How do I erase elements while iterating with std::set for embedded targets?

How do I provide stable iteration order with std::unordered_map for large datasets?

How do I reserve capacity ahead of time with std::unordered_map for large datasets?

How do I erase elements while iterating with std::unordered_map in multithreaded code?

How do I provide stable iteration order with std::map for embedded targets?

How do I provide stable iteration order with std::map in multithreaded code?

How do I avoid rehashing overhead with std::map in performance-sensitive code?

How do I merge two containers efficiently with std::map for embedded targets?