What are the complexities of different searching algorithms in C++?

Can you explain the time complexity of linear search in C++?

Sure! The time complexity of linear search is O(n), where n is the number of elements in the array. It checks each element one by one.

What about binary search? How does it compare?

Binary search has a time complexity of O(log n), which is much more efficient than linear search, but it requires the array to be sorted.

Are there any other searching algorithms I should know about?

Yes, there are several, including jump search, interpolation search, and exponential search, each with different complexities and use cases.

Can you give me an example of how to implement binary search in C++?

Certainly! Here's a simple implementation:

int binarySearch(int arr[], int size, int target) {
    int left = 0, right = size - 1;
    while (left <= right) {
        int mid = left + (right - left) / 2;
        if (arr[mid] == target) return mid;
        if (arr[mid] < target) left = mid + 1;
        else right = mid - 1;
    }
    return -1; // Target not found
}