Accessing the last element on a row in a 2D array that is in a structure

I'm attempting to access the last element on each row of a 2D array that is inside a structure. I'm, attempting to determine if a specific character is in that position, but I can't figure out how to access that specific element.

My unfinished code:

typedef struct node {
   int height;
   int width;
   int parent;
} Node;

bool emptyEnd (Node *b)
   int x, y;
   char lastEle = ;

   for (y = 0; y <= b->height; y++) {
      for (x = 0; x <= b->width; x++) {
         if (lastEle == '-') {
            return true;
         } else {
            return false;

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