99. Check if the String Numeric or Alphabetic

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

void classify_string(const char *str) {
    // Your logic here
    int numericFlag = 0, alphaFlag = 0;

    while(*str != '\0'){
        if(*str >= '0' && *str <= '9'){
            numericFlag = 1;
        }
        else if(((*str>='a' && *str<='z')) || ((*str>='A')&&(*str<='Z')) ){
            alphaFlag = 1;
        }else{
            printf("MIXED");
            return;
        }
        str++;
    }

    if(alphaFlag == 1 && numericFlag == 1)
        printf("MIXED");
    else if(alphaFlag == 1)
        printf("ALPHABETIC");
    else
        printf("NUMERIC");
}

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;
}