Thread: For loop problem :)

I thought I was comfortable with using for loop since it's pretty simple and now I came across this problem and I see nothing wrong with it but the error kept on insisting I have not declared my counter when I did. This is my code:

Code:

    //Declare data type and variables for the users input
    double x_coord[4];  //variable for x coordinates
    double y_coord[4];  //variable for y coordinates
    double best_location_x, best_location_y, total_x, total_y;  //variable for the centroid\
    int i;  //use for counter
    //Use for loop to get the coordinates of each x and y coordinates in an array set
    for (i = 1; i < 4; i++){
    //Get users input on first location
    printf("What are the x-y coordinates of location %d (values in miles between -50 and 50): ", i);
    //Store the users input
    scanf("%lf%lf", &x_coord[i], &y_coord[i]);
    } //end for loop

The error says in the line for(i = 1; i<4; i++) 'i' is undeclared (first use in this function)
I declared i in int = i; so I have no idea why it's not running.
I appreciate it if anyone could lend a hand
A hint would be lovely ^.^

You have a comment right before the declaration that ends with '\' and thus extends it to the row below, so your declaration is out commented.

You also might want to start i at 0 that way you get input at the first part of the array rather than the 2nd index