Binary Search in Sorted Array

Code

#include <stdio.h>
#include <stdint.h>

int binary_search(uint8_t *arr, uint8_t n, uint8_t key) {
    // Your logic here
    int low = 0; 
    int high = n -1 ; 
    while (low <= high)
    {
        int mid = (low + high) / 2;
        if (*(arr + mid) == key)
        {
            return mid; 
        }
        else if (*(arr + mid) <= key )
        {
            low = mid + 1 ; 

        }
        else if (*(arr + mid) >= key )
        {
            high = mid -1; 

        }
    }

    return -1;
}

int main() {
    uint8_t n, key;
    scanf("%hhu", &n);
    uint8_t arr[100];

    for (uint8_t i = 0; i < n; i++) {
        scanf("%hhu", &arr[i]);
    }
    scanf("%hhu", &key);

    int index = binary_search(arr, n, key);
    printf("%d", index);
    return 0;
}

Solving Approach