Draws a filled circle of the specified radius, centered at (<em>x</em>, <em>y</em>). @param x the <em>x</em>-coordinate of the center of the circle

returns -1 if no cross slots

Retrieve the 10 most recent tweet ids in the user's news feed. Each item in the news feed must be posted by users who the user followed or by the user

General helper functions.

Associates key with index {@code i}. @param i an index @param key the key to associate with index {@code i} @throws IndexOutOfBoundsException unles

Sets the pen size to the default size (0.002). The pen is circular, so that lines have rounded ends, and when you set the pen radius and draw a point,

Sets the <em>x</em>-scale to be the default (between 0.0 and 1.0).

Sets the <em>y</em>-scale to be the default (between 0.0 and 1.0).

Check if a number is available or not.

Removes a minimum key and returns its associated index. @return an index associated with a minimum key @throws NoSuchElementException if this priorit

Enable double buffering. All subsequent calls to drawing methods such as {@code line()}, {@code circle()}, and {@code square()} will be deffered until

dayIndex is 0 to 6: 0 is Friday, 6 - is Thursday

@return whether we have a next smallest number

makes slots around ONHOLD

Returns true if this priority queue is empty. @return {@code true} if this priority queue is empty; {@code false} otherwise

Returns an iterator that iterates over the keys on the priority queue in ascending order. The iterator doesn't implement {@code remove()} since it's o

Compose a new tweet.