Define a coordinate struct as follows:

struct coordinate {

double x;

double y;

};

Write a function that takes in an array of struct coordinate and an integer which specifies the length of the array, and returns the distance of the struct coordinate that is closest to the origin. (For example, if the array stored the points (2, 3), (5, 9), (-2, 5), and (2,1), your function should return approximately sqrt(5) since that is the distance between (2,1) and the origin.) Please DO NOT READ IN ANY INFORMATION FROM THE USER in writing this function. The prototype is given for you below. (Assume math.h is included already.)

double closestDistance(struct coordinate points[],int length);