Columns

columns.py

def columns(size, columns=30):
    """
    Return the number of items in each of X columns given a number.
    Basically the idea is to find exact or next largest rectangle of a given
    number and given amount of columns. Then fill each column evenly.
    """
    nearest_rect = 0
    column_items = [0 for i in xrange(columns)]
    for index in xrange(columns):
        if size % columns == 0:
            nearest_rect = size
        else:
            nearest_rect = (size // columns) * columns + columns

        if index == 0:
            items = nearest_rect / columns
        else:
            items = nearest_rect // columns

        column_items[index] = items
        size -= items
        columns -= 1

    return column_items


if __name__ == '__main__':
    for i in range(300):
        print columns(i)