I need a walkthrough for this please.

01#include

02

03#define INITIAL_HEALTH 100

04#define NAME_LENGTH 10

05

06struct Hero

07{

08char name[NAME_LENGTH + 1];

09int health;

10int strength;

11int shield;

12};

13

14struct Hero attack(struct Hero* h1, struct Hero* h2)

15{

16struct Hero result;17

18while (h1->health > 0 && h2->health > 0)

19{

20h1->health -= h2->strength - h1->shield;

21h2->health -= h1->strength - h2->shield;

22}

23

24if (h1->health < h2->health)

25{

26result = *h1;27}

28else

29{

30result = *h2;

31}

32

33return result;

34}

35

36int main(void)

37{

38struct Hero hero1 = { {'N', 'i', 'n', 'j', 'a', ''} , INITIAL_HEALTH, 150, 20 };

39struct Hero hero2 = { "Enigma", INITIAL_HEALTH, 75, 50 };

40

41struct Hero winner = attack(&hero1, &hero2);

42

43puts("Game Over");

44printf("The winner is %s", winner.name);

45

46return 0;

47}