Fixing Love vs Friendship in C

The problem

If　a = 1, b = 2, c = 3 ... z = 26

Then l + o + v + e = 54

and f + r + i + e + n + d + s + h + i + p = 108

So friendship is twice as robust as love 🙂

Your activity is to write down a operate which calculates the worth of a phrase primarily based off the sum of the alphabet positions of its characters.

The enter will all the time be product of solely lowercase letters and can by no means be empty.

The answer in C

Choice 1:

int word_score (const char *phrase) {
  int x = 0;
  
  whereas (*phrase)
    x += *phrase++ - 'a' + 1;
  
  return x;
}

Choice 2:

#embody <string.h>
int word_score (const char *phrase) {
  int sum = 0 ,len = strlen(phrase);
  for(int i = 0; i< len; i++)
    sum += phrase[i] - 'a' + 1;
  return sum;
}

Choice 3:

int word_score(const char *phrase) {
    int sum = 0;
    whereas(*phrase) {
        sum += *phrase++ - 96;
    }
    return sum;
}

Check circumstances to validate our resolution

#embody <criterion/criterion.h>

static void do_test (const char *phrase, int anticipated);

Check(kata, basic_tests)
{
  do_test("perspective", 100);
  do_test("buddies", 75);
  do_test("household", 66);
  do_test("selfness", 99);
  do_test("data", 96);
}

extern int word_score (const char *phrase);

static void do_test (const char *phrase, int anticipated)
{
	int precise = word_score(phrase);
	cr_assert_eq(precise, anticipated,
		"anticipated %d however obtained %d for phrase "%s"",
		anticipated, precise, phrase
	);
}