#include <stdio.h>
#include <string.h>

struct position {
   int x;
   int y;
   int z;
};

struct box {
   int itemnum;
   char color[25];
   struct position p;
   int height;
   int width;
   int depth;
};

struct box greater_volume(struct box, struct box);

int main()
{
   struct box boxes[100];
   struct box b1 = {3, "red", {1, 2, 3}, 3, 2, 5};
   boxes[0] = b1;
   boxes[1] = (struct box) {2, "green", {2,3,4}, 3, 4, 5};

   for (int i = 0; i < 2; i++) {
      printf("Item Num: %d\nColor: %s\nPosition: (%d,%d,%d)\nHeight: %d\nWidth: %d\nDepth: %d\n", boxes[i].itemnum, boxes[i].color, boxes[i].p.x, boxes[i].p.y, boxes[i].p.z, boxes[i].height, boxes[i].width, boxes[i].depth);
   }

   boxes[2] = greater_volume(boxes[0], boxes[1]);

   for (int i = 0; i < 3; i++) {
      printf("Item Num: %d\nColor: %s\nPosition: (%d,%d,%d)\nHeight: %d\nWidth: %d\nDepth: %d\n", boxes[i].itemnum, boxes[i].color, boxes[i].p.x, boxes[i].p.y, boxes[i].p.z, boxes[i].height, boxes[i].width, boxes[i].depth);
   }

   return 0;
}

struct box greater_volume(struct box b1, struct box b2) {
   int volume1 = b1.height * b1.width * b1.depth;
   int volume2 = b2.height * b2.width * b2.depth;

   if (volume1 > volume2) {
      b1.p.x = b1.p.y = b1.p.z = 0;
      strcpy(b1.color, "green");
      return b1;
   } else {
      b2.p.x = b2.p.y = b2.p.z = 0;
      strcpy(b2.color, "green");
      return b2;
   }
   
}