Count Alphabets Digits and Symbols in a String

Code

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

void classify_chars(const char *str, uint8_t *alpha, uint8_t *digit, uint8_t *symbol) {
    
    // Your logic here

    while(*str !='\0'){

        if((*str >= 65 && *str <= 90)||(*str >= 97 && *str <= 122)){

            ++*alpha;

        } else if(*str >= 48 && *str <= 57){

            ++*digit;

        } else if(*str != ' ') {

            ++*symbol;

        }

        str++;

    }

    

}

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++;
    }

    uint8_t alpha = 0, digit = 0, symbol = 0;
    classify_chars(str, &alpha, &digit, &symbol);
    printf("Alphabets = %u\nDigits = %u\nSymbols = %u", alpha, digit, symbol);
    return 0;
}

Solving Approach