Check if the String Numeric or Alphabetic

Code

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

void classify_string(const char *str) {
    int head = 0; 
    char status = 0;
    // int nflag = 0;
    // int aflag = 0;

    if (str[0] == '\0') {
        printf("MIXED");  
        return;
    }
    
    for(;str[head] !=0;head++){
        char ch = str[head];
        if (ch >= '0' && ch <= '9') {
            // nflag = 1;
            status |= 1;
        } else if ((ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z')) {
            // aflag = 1;
            status |=(1<<1);
        } else {
            printf("MIXED");
            return;
        }
    }

    // (nflag ^ aflag ) ?  (nflag ? printf("NUMERIC") : printf("ALPHABETIC")) : printf("MIXED");
    (status != 3 ) ? ((status & 1) ? printf("NUMERIC") : printf("ALPHABETIC")) : printf("MIXED");
    
}

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;
}

Solving Approach