Binary Search,Selection Sort,Bubble Sort,and Quick Sort Implementations in Objective-C

Sorting and searching algorithms are fundamental in programming, often applied across various software development scenarios. Objective-C, being a primary language on the Apple platform, provides the means to implement these algorithms. Here we will discuss the Binary Search, Selection Sort, Bubble Sort, and Quick Sort algorithms in Objective-C. Let's start with Binary Search, a highly efficient search algorithm suitable for sorted arrays. It repeatedly halves the search range to quickly find the target element. Here's a basic implementation of Binary Search in Objective-C:

- (NSInteger)binarySearch:(NSArray *)sortedArray target:(id)target {
    NSInteger low = 0;
    NSInteger high = sortedArray.count - 1;
    while (low <= high) {
        NSInteger mid = (low + high) / 2;
        if ([sortedArray[mid] compare:target] == NSOrderedSame) {
            return mid;
        } else if ([sortedArray[mid] compare:target] == NSOrderedAscending) {
            low = mid + 1;
        } else {
            high = mid - 1;
        }
    }
    return -1;  // Target not found
}

Next, we explore Selection Sort, Bubble Sort, and Quick Sort implementations in Objective-C, each of which offers different efficiency for various datasets.