Count Alphabets Digits and Symbols in a String

Code

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

void classify_chars(const char *str, uint8_t *alpha, uint8_t *digit, uint8_t *symbol) 
{
    int i;
    int alpha_count=0,digit_count=0,symbol_count=0;
    for(i=0;str[i]!='\0';i++)
    {
        if(str[i]>='A' && str[i]<='Z' || str[i]>='a' && str[i]<='z')
        {
            alpha_count++;
        }
        else if(str[i]>='0' && str[i]<='9')
        {
            digit_count++;
        }
        else 
        {
            if(str[i]==' ')
            {
                continue;
            }
            symbol_count++;
        }
    }
printf("Alphabets = %u\n Digits = %u\n Symbols = %u", alpha_count, digit_count, symbol_count);
}

int main() {
    char str[101];
    fgets(str, sizeof(str), stdin);

    // Remove newline
    uint8_t i = 0;
    while (str[i]) {
        if (str[i] == '
') {
            str[i] = '\0';
            break;
        }
        i++;
    }

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

Solving Approach