Sliding windows with screens
It can be observed from the above code that the time complexity is O(k*n) as it contains two nested loops.
Window Sliding Technique
The technique can be best understood with the window pane in bus, consider a window of length n and the pane which is fixed in it of length k. Consider, initially the pane is at extreme left i.e., at 0 units from the left. Now, co-relate the window with array arr[] of size n and pane with current_sum of size k elements. Now, if we apply force on the window such that it moves a unit distance ahead. The pane will cover next k consecutive elements.
Consider an array arr[] = <5, 2, -1, 0, 3>and value of k = 3 and n = 5
Applying sliding window technique :
- We compute the sum of first k elements out of n terms using a linear loop and store the sum in variable window_sum.
- Then we will graze linearly over the array till it reaches the end and simultaneously keep track of maximum sum.
- To get the current sum of block of k elements just subtract the first element from the previous block and add the last element of the current block .
The below representation will make it clear how the window slides over the array.
This is the initial phase where we have calculated the initial window sum starting from index 0 . At this stage the window sum is 6. Now, we set the maximum_sum as current_window i.e 6.
Now, we slide our window by a unit index. Therefore, now it discards 5 from the window and adds 0 to the window. Hence, we will get our new window sum by subtracting 5 and then adding 0 to it. So, our window sum now becomes 1. Now, we will compare this window sum with the maximum_sum. As it is smaller we wont the change the maximum_sum.
Similarly, now once again we slide our window by a unit index and obtain the new window sum to be 2. Again we check if this current window sum is greater than the maximum_sum till now. Once, again it is smaller so we don’t change the maximum_sum.
Therefore, for the above array our maximum_sum is 6.
code for the above description :
The Pros and Cons of Sliding (Gliding) Windows
Sliding windows are comprised of a single frame and pane of glass. However, what makes the sliding window truly unique is the way that it opens. A sliding window slides open and closed on rollers set in a track. A sliding window is often strategically used for cramped areas of the home, or for rooms where a large exterior obstacle such as a tree or another building blocks the window’s ability to open outward. Read on to learn more about the various pros and cons of the sliding window.
Costs for a Sliding Window
The sliding window is no longer as common as other window styles available today. The complexity of multiple sashes makes the sliding window slightly more expensive than other windows. A sliding window typically costs between $250 and $950 per window. Sliding window installation costs are generally an additional $75 to $250 per unit.
Common Sliding Window Styles
The sliding window’s design varies. A sliding window can have as many as three operable windows that open to the great outdoors. However, the primary types of sliding window are the double and single-slider. A common choice for kitchens, a double-sliding window has sashes which open from each end and glide along the window frame with ease, making the slider window extremely easy to open. A single-sliding window has one fixed window and one sliding window. Although this option does not allow as much ventilation into your rooms, it is much cheaper than the double-sliding window, since it has only one window that slides.
An upgrade from single hung window to a sliding window | © CC BY-SA 2.0 flickr.com / David Reber
How to Maintain Your Sliding Window
The sliding window has fewer parts than traditional window types. This is makes it a durable and low-maintenance choice. While pulleys or springs eventually fail over time, the simple and easy-to care-for sliding window’s rollers make it far more durable, especially when combined with other additions like window glazing. However, the sliding window’s exterior is somewhat harder to clean, repair, or replace; unlike other windows that are able to tilt and be cleaned from the interior, the sliding window only moves left and right.
Energy Efficient Sliding Windows
While the sliding window is preferable for its ease-of-use, it is not able to provide as tight a seal as the casement window, which is similar in style. Consequently, normal U-factor (the insulation value) for a sliding window is around 0.18. Sliding windows’ SGHC (solar heat gain coefficient) values fall somewhere between 0.19 and 0.23. Homeowners should note that the lower these values are, the better the window’s seal and the more insulation their window provides.
Summary: Gliding Open With Ease
A sliding window is perfect for situations that call for a window that slides left or right rather than opening outwards. This type of window is an especially good choice for rooms that open onto porches, outside walkways, or other areas where a window that opens outward would be cumbersome. Extremely easy to use, a sliding window is a durable and low-maintenance option.
window screen
1 window screen
2 window screen
3 window screen
4 window screen
5 window screen
6 window screen
7 window screen
8 оконная противомоскитная сетка
9 оконная противомоскитная сетка
См. также в других словарях:
Window screen — A window screen, insect screen or bug screen is a metal wire, fiberglass, or other synthetic fiber mesh, stretched in a frame of wood or metal, designed to cover the opening of an open window. Its primary purpose is to keep leaves, debris,… … Wikipedia
window screen — noun screen to keep insects from entering a building through the open window • Hypernyms: ↑screen * * * noun 1. : a screen usually of wire mesh designed to fit into a window frame and keep out insects when the window is open 2. : an ornament (as… … Useful english dictionary
Screen painting — is painting on window screens. It is a folk art form originating in immigrant working class neighborhoods in Baltimore, Maryland in the early 20th century.The wire screen section of a screen door is typically painted with bucolic landscapes,… … Wikipedia
Screen — Contents 1 Separation or partitioning 2 Filtration/selection processes 3 Media display … Wikipedia
Screen door — A screen door can refer to a hinged storm door covering an exterior door or the screened sliding door used on a sliding patio door. In either case, the screen door incorporates screen mesh to keep flying insects from getting in to the living… … Wikipedia
screen — Pākū, pālulu, ālai, ānai, wahamana. ♦ Wire screen, uwea hakahaka. ♦ Window screen, uwea hakahaka, pālulu pukaaniani. ♦ Screen for projecting pictures or movies, wahi ho olele ki i … English-Hawaiian dictionary
Window — Win dow, n. [OE. windowe, windoge, Icel. vindauga window, properly, wind eye; akin to Dan. vindue. . See
Window back — Window Win dow, n. [OE. windowe, windoge, Icel. vindauga window, properly, wind eye; akin to Dan. vindue. . See
Window blind — Window Win dow, n. [OE. windowe, windoge, Icel. vindauga window, properly, wind eye; akin to Dan. vindue. . See
Window bole — Window Win dow, n. [OE. windowe, windoge, Icel. vindauga window, properly, wind eye; akin to Dan. vindue. . See
Window box — Window Win dow, n. [OE. windowe, windoge, Icel. vindauga window, properly, wind eye; akin to Dan. vindue. . See
