C Program Data Structure Bubble Sort

I am writing a function that takes a data structure pointer that is loaded with numbers and I want to sort the points from greatest distance from (0,0) on a graph.

The data structure used is:

struct data {

int x;

int y;

}

the function is:

struct data* sort(struct data* array, int size);

Parameter: array An array of data

Parameter: size The size of the array

Return: A pointer to the sorted array

The points should be sorted based on distance from (0,0) on a graph