Convert Integer to Hex String Without sprintf or itoa functions

Code

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

void print_hex(uint16_t num) {
    // Your logic here
    char hex[16];
    int i = 0;
    if(num == 0){
        printf("0");
        return;

    }


    while(num > 0){
        int rem = num % 16;

        if(rem < 10){
            hex[i++] = rem + '0';
        }
        else {
            hex[i++] = rem - 10 + 'A';
        }
        num = num / 16;

    }
    for(int j = i - 1; j >= 0; j--){
        printf("%c", hex[j]);
    }
}

int main() {
    uint16_t num;
    scanf("%hu", &num);
    print_hex(num);
    return 0;
}

Solving Approach