Find Top 3 Largest Values in an Array

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

void find_top_3(uint8_t *arr, uint8_t n) {
    uint8_t a=0,b=0,c=0;
    int ai=-1,bi=-1;
    for(int i=0;i<n;i++){
        if(a<*(arr+i)){
            a = *(arr+i);
            ai = i;
        }

    }
    for(int i=0;i<n;i++){
        if(b<=*(arr+i) && *(arr+i)<=a && (ai!=i) ){
            b = *(arr+i);
            bi = i;
        }

    }
    for(int i=0;i<n;i++){
        if(c<=*(arr+i) && *(arr+i)<=b && (bi != i))
            c = *(arr+i);

    }
    printf("%d ",a);
    if(n>=2)
        printf("%d ",b);
    if(n>=3)
        printf("%d",c);
}

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;
}