97. Parse Comma-Separated Integers into an Array

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

void parse_csv_to_array(const char *str, uint8_t *arr, uint8_t *count) {
    // Your logic here
    if(str == NULL || arr == NULL || count == NULL)
        return;
    
    uint8_t accu = 0;
    while(*str != '\0')
    {
        if(*str == ',')
        {
            *arr = accu;
            accu = 0;
            arr++;
            (*count)++;
        }
        if(*str >= '0' && *str <= '9')
        {
            accu = accu*10 + *str - '0';
        }
        str++;
    }
    if(*str == '\0')
    {
        *arr = accu;
        accu = 0;
        arr++;
        (*count)++;
    }
}

int main() {
    char str[101];
    fgets(str, sizeof(str), stdin);

    // Remove newline
    uint8_t i = 0;
    while (str[i]) {
        if (str[i] == '\n') {
            str[i] = '\0';
            break;
        }
        i++;
    }

    uint8_t arr[20];
    uint8_t count = 0;

    parse_csv_to_array(str, arr, &count);

    for (uint8_t i = 0; i < count; i++) {
        printf("%u", arr[i]);
        if(i < count - 1){
            printf(" ");
        }
    }
    return 0;
}