99. Check if the String Numeric or Alphabetic

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

void classify_string(const char *str) {
    // Your logic here
    bool numeric = false;
    bool alphabetic = false;
    bool symbol = false;
    int i = 0;
    while(str[i]){
        if(str[i]>='0'&&str[i]<='9'){
            numeric = true;
        }
        else if((str[i]>='A'&& str[i]<='Z')||(str[i]>='a'&& str[i]<='z')){
            alphabetic = true;
        } else{
            symbol = true;
        }
        i++;
    }
    if((numeric && alphabetic) || (alphabetic && symbol) ){
        printf("MIXED");
    }else if(numeric){
        printf("NUMERIC");
    }else if(alphabetic){
        printf("ALPHABETIC");
    }else{

    }
}

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;
}