Check if the String Numeric or Alphabetic

Code

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

void classify_string(const char *str) {
    int k=0,c=0,i;
    int l=strlen(str);
    for(i=0;str[i]!='\0';i++){
        if(str[i]>='0' && str[i]<='9'){
            c++;
        }
        if(c==l)
         {printf("NUMERIC");
         k=1;}
    }
    c=0;
    for(i=0;str[i]!='\0';i++){
        if(str[i]>='a' && str[i]<='z' ||str[i]>='A' && str[i]<='Z'  ){
            c++;
        }
        if(c==l){printf("ALPHABETIC");
        k=1;}
    }
    if(k==0) 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