Convert Decimal Number to Binary or Hex Without itoa function

Code

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


void print_base(uint16_t num, uint8_t base) {
    // Your logic here
    int count =0;
    char str[100];
    if(num==0) printf("0");
    while (num > 0) {
        uint8_t remainder = num % base;

        if (remainder < 10)
            str[count++] = remainder + '0';
        else
            str[count++] = (remainder - 10) + 'A';

        num = num / base;
    }
    for(int i=count-1;i>=0;i--){
        printf("%c" ,str[i]);


    }
}

int main() {
    uint16_t num;
    uint8_t base;
    scanf("%hu %hhu", &num, &base);

    print_base(num, base);
    return 0;
}

Solving Approach