What is the applicability of data structures?

Question

Adaptive design

hello, I'm a beginner in programming and I don't quite understand why we need such things as binary search trees, hash tables, and so on? what do they give?

Answer 1

There is no way to make a table responsive. If you want the content to be displayed under any conditions as in the top picture, I usually display a horizontal scroll.

Answer 2

To make content in 2 columns, it is not necessary to use a table.
All you need is to make a flex block.

<div class="flex_block">
  <div>Колонка 1</div>
  <div>Колонка 2</div>
</div>

.flex_block {
  width: 100%;
  display: flex;
}
.flex_block > div {
  flex: 1 1 auto;
}

Block properties, such as width, "thickness", order, can be varied. In fact, there are a lot of possibilities. If you are not familiar with flexbox, here is the help: https://html5.by/blog/flexbox/

Answer 3

They are needed so that strings / lists / dictionaries / other data structures from the "standard library" work well and quickly.

Answer 4

when developing new data structures, programmers want to increase the efficiency of working with data (most often they are looking for a way to increase the speed of data processing, or reduce the size of their storage / transportation).
searching for data, for example, in a binary tree, is faster than searching through the entire list by orders of magnitude.

Answer 5

These are things that give a clearer understanding of the work of libraries and programs. (For example, how it searches for a database or how parameters are passed to a function in the asm language)
They also serve as a kind of tool that you can use in your projects.
They will help make it concise, faster and more readable.