99. Check if the String Numeric or Alphabetic

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

void classify_string(const char *str) {
    // Your logic here
    int numeric=0;
    int alphabetic=0;
    int mixed=0;
    while(*str){
        if( (((*str >= '0')  && (*str <= '9')) && !(alphabetic)) && !(mixed)  )
        {
            numeric=1;
        }
        else if ( ((((*str >= 'a') && (*str<='z')) || (( *str >= 'A' ) && (*str <='Z')))
         && !(numeric)) && !(mixed)
        )
        {
            alphabetic=1;
        }
        else
        {
            mixed=1;
            break;
        }
        str++;
    }
    if(mixed) printf("MIXED");
    else if(alphabetic) printf("ALPHABETIC");
    else if (numeric) printf("NUMERIC");
    return;


}

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++;
    }

    classify_string(str);
    return 0;
}