Check if the String Numeric or Alphabetic

Code

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

void classify_string(const char *str) {
    // Your logic here
    bool num_flag = false;
    bool alp_flag = false;
    bool sym_flag = false;
    while(*str!='\0'){
        if((*str>='0')&&(*str<='9')){
            num_flag = true;
        }
        else if(((*str>='a')&&(*str<='z'))||((*str>='A')&&(*str<='Z'))){
            alp_flag = true;
        }
        else{
            sym_flag = true;
        }
        str++;
    }


    if(sym_flag){
        printf("MIXED");
    }
    else{
        if(num_flag& (!alp_flag)){
            printf("NUMERIC");
        }
        else if(alp_flag& (!num_flag)){ 
            printf("ALPHABETIC");
        }
        else{
            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

 

 

 

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Input

123456

Expected Output

NUMERIC