Find Top 3 Largest Values in an Array

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

void find_top_3(uint8_t *arr, uint8_t n) {
    if (arr == NULL || n <= 0)
    {
        return;
    }
    
    uint8_t max1 = 0 ,max2 = 0, max3 = 0;

    for (uint8_t i = 0; i < n; ++i)
    {
        if (arr[i] > max1)
        {
            max3 = max2;
            max2 = max1;
            max1 = arr[i];
        }
        else if (arr[i] > max2)
        {
            max3 = max2;
            max2 = arr[i];
        }
        else if (arr[i] > max3)
        {
            max3 = arr[i];
        }
    }

    if (n >= 1) 
    {
        printf("%u ", max1);
    }
    if (n >= 2) 
    {
        printf("%u ", max2);
    }
    if (n >= 3) 
    {
        printf("%u", max3);
    }
}

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

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

    find_top_3(arr, n);
    return 0;
}