#include "p1.h"

#include <ctype.h>

int count_alphanumeric(const char* str) {
	int num_alphanumeric = 0;
	const char* current = str;

	while (*current != '\0') {
		if (isalnum(*current)) {
			++num_alphanumeric;
		}

		++current;
	}

	return num_alphanumeric;
}