Binary search is an efficient algorithm for finding an element from a sorted array. In C++, we can utilize the `std::array` container for this purpose. Below is an example of how to perform a binary search using algorithms in C++ with `std::array`.
#include <iostream>
#include <array>
#include <algorithm>
int main() {
std::array arr = {1, 2, 3, 4, 5, 6};
int target = 4;
auto result = std::lower_bound(arr.begin(), arr.end(), target);
if (result != arr.end() && *result == target) {
std::cout << "Element found at index: " << std::distance(arr.begin(), result) << std::endl;
} else {
std::cout << "Element not found." << std::endl;
}
return 0;
}
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