99. Check if the String Numeric or Alphabetic

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Code

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

void classify_string(const char *str) {
    int so=0;
    int chu=0;
    for(int i=0;str[i]!='\0';i++){
        char c=str[i];
        if(c>='0'&& c<'9'){
            so=1;
        }
        else if(c>='a' && c<='z' || c>='A' && c<='Z'){
            chu=1;
        }
        else{
            printf("MIXED");
            return;
        }
    }
    if(so && !chu){
        printf("NUMERIC");
    }
    else if(!so && chu){
        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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