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 i=0, is_digit=0, is_alpha=0, count=0;
    while(*(str + count) != '\0') {
        count++;
    }
    while(*(str + i) != '\0') {
        if(*(str + i) >= '0' && *(str + i) <= '9') {
            is_digit++;
        }
        else if ((*(str + i) >= 'A' && *(str + i) <= 'Z') || (*(str + i) >= 'a' && *(str + i) <= 'z')) {
            is_alpha++;

        }
        i++;
    }

    if(is_digit == count) {
        printf("NUMERIC");
    }
    else if(is_alpha == count) {
        printf("ALPHABETIC");
    }
    else {
        printf("MIXED");
    }
    
    // Your logic here
}

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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