A Common-Sense Guide to Data Structures and Algorithms, Second Edition (Pragmatic Bookshelf)
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Title: A Common-Sense Guide to Data Structures and Algorithms, Second Edit...
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@jaywengrow
It seems that the delete method presented in this book doesn’t handle one case. This function does nothing if we try to remo...
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Author Spotlight:
Jay Wengrow
@jaywengrow
Jay Wengrow founded Actualize, a Chicago-based coding boot camp. We recently sat down with ...
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@jaywengrow
“What is the maximum number of steps it would take to perform a binary search on an array of size 100,000?”
“To solve this,...
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@jaywengrow
While reading Chapter 6, I might have spotted a little error in the Insertion Sort Explanation part on page 85, where it say...
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In the second paragraph under the heading “Wrapping Up”, this sentence:
Speaking of which, in the next chapter, we’ll discover a new dat...
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Chapter 19 contains:
Finally, we reach the -9. This would make the current sum -4,
Since the current sum is 6 before encountering -9,...
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In the graphs chapter (p. 414 in the ePub edition), the weight for the connection LA-Miami is missing:
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Chapter 18 contains this sentence:
Gina has two neighbors: Derek and Gina.
This should be “Gina has two neighbors: Derek and Irena.” ...
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The chapter “Average celsius reading” (p. 143 in the ePub edition) contains this fragment:
readings from across many thermometers acros...
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@jaywengrow
A Common-Sense Guide to Data Structures and Algorithms - insertion at wrong index (page 140)
I tested the example of a link...
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@jaywengrow
I have noticed a mistake regarding the break condition for the insertion sort algorithm.
Currently, the paragraph is as fol...
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@jaywengrow
I have noticed a mistake regarding the best-case scenario time complexity for the intersection function described on p. 92/9...
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@jaywengrow
I noticed that Ruby has a Queue implemented in the standard library, so naming our custom queue implementation Queue collide...
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@jaywengrow
Title: Name of book: description (page number)
Example: Programming Flutter - ‘pub get’ command not working (page 15)
In C...
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@jaywengrow
While reading through the “Greedy Algorithm” section of chapter 20 I saw that after the diagram for the greatest sum being 6...
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Book: A Common-Sense Guide to Data Structures and Algorithms, Second Edition
Page 320
Function: collectAllWords
Python Version: CPytho...
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Maybe best case of improved Intersection Algorithm perform N2/2 comparisons: A Common-Sense Guide to Data Structures and Algorithms, Seco...
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The attached image shows the first paragraph on page 433. Toward the end of the first line, the toggling between serif and sans serif fon...
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The first complete paragraph on page 428 contains this phrase: “But if we make it to end of the loop…”
The word “the” is missing. The se...
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The last paragraph of the “Change the Data Structure” section begins, “Our using of a hash table…”
Better phrasing would be “Our use of ...
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Maybe you were just trying to keep the sum_swap code clean and streamlined for ease of reading, but this method didn’t seem as air-tight ...
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On page 379, this part of the Dijkstra shortest path code is supposed to determine the next unvisited city to visit based on it being the...
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missed the last route in the code:
el_paso.add_route(boston, 100)
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Hi, in page 54, there is a line that begins with “To put it this in a way that would hold true…”. I believe it should read “To put this i...
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Hi, in page 42, before the line with the result of log of 64 in base 2, there is a line that reads as:
“Because we had to multiply 2 by ...
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Hi, I believe the word “remain” in the last line of the second paragraph in page 39 should be replaced by “remains”.
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There are two provided implementations for the number_of_paths function. The ‘hardcoded’ version is correct, but the simplified version i...
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In the final paragraph on page 315, the text reads, “…that will have no affect on the speed of our search.”
The word “effect” should be ...
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Hello,
There is a way to avoid unnecessary step in exercise 4 on page 111 (ch. 7).
Since you already calculating for the array indexes ...
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Please use the following format for the title of this thread:
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Author Spotlight:
Jay Wengrow
@jaywengrow
Jay Wengrow founded Actualize, a Chicago-based coding boot camp. We recently sat down with ...
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Hello! Thanks for the great book.
I was attempting the Trie (chap 17) exercises and for number 4 the solution provided for the autocorre...
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A Common-Sense Guide to Data Structures and Algorithms, Second Edition by @jaywengrow:
page 326 - missing param
on the def autocomplete...
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At the bottom of page 96, “execute three more steps" should be “TWO more steps.” Even numbers have three steps, odd numbers have one step...
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On page 379, this part of the Dijkstra shortest path code is supposed to determine the next unvisited city to visit based on it being the...
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Hi, I am trying to convert the ruby code of Quickselect into python and I noticed that I have to add return statements in the if else con...
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Hi, in page 54, there is a line that begins with “To put it this in a way that would hold true…”. I believe it should read “To put this i...
New
There are two provided implementations for the number_of_paths function. The ‘hardcoded’ version is correct, but the simplified version i...
New
Book: A Common-Sense Guide to Data Structures and Algorithms, Second Edition
Page 320
Function: collectAllWords
Python Version: CPytho...
New
The first complete paragraph on page 428 contains this phrase: “But if we make it to end of the loop…”
The word “the” is missing. The se...
New
The attached image shows the first paragraph on page 433. Toward the end of the first line, the toggling between serif and sans serif fon...
New
Maybe you were just trying to keep the sum_swap code clean and streamlined for ease of reading, but this method didn’t seem as air-tight ...
New
Hi, in page 42, before the line with the result of log of 64 in base 2, there is a line that reads as:
“Because we had to multiply 2 by ...
New
Hi, I believe the word “remain” in the last line of the second paragraph in page 39 should be replaced by “remains”.
New
The last paragraph of the “Change the Data Structure” section begins, “Our using of a hash table…”
Better phrasing would be “Our use of ...
New
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Think Again 50% Off Sale »
The theme of this sale is new perspectives on familiar topics.
Enter coupon code ThinkAgain2021 at checkout t...
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Algorithms and data structures are much more than abstract concepts. Mastering them enables you to write code that runs faster and more e...
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A Common-Sense Guide to Data Structures and Algorithms, Second Edition by Jay Wengrow @jaywengrow
Hi,
I have the paperback version of t...
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Hello! It’s Jay Wengrow, author of A Common-Sense Guide to Data Structures and Algorithms. My book now has a supplemental website, where ...
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In the answers for the Chapter 13 exercises, there are several uses of JavaScript’s array.sort() to sort an array of numbers. However, th...
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Hi @jaywengrow,
I think the table of Selection Sort shows wrong Max number of steps.
For example, for N = 5 we sould have:
Comparsion...
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In the graph on page 41, the arrow leading from O(log n) points to the O(1) function instead of to the O(log n) function.
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On page 331, the subtitle says “Code Implementation: Trie Search,” but the section is about insertion, so it should be “Code Implementati...
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Title: A Common-Sense Guide to Data Structures and Algorithms, Second Edition
Example: Incorrect time complexity (page 55)
Notice the ...
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The word “make” is omitted in the phrase “make this magic come alive” in Chapter 20. (more details in the screenshot)
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In chapter 6,
Page 93/438.
"But now, in the best-case scenario, where the two arrays are identical, we only have to perform N compar...
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At the bottom of page 85, “position that is greater or equal” should be “smaller”. That is, the loop should stop running once it encounte...
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On page 91, there’s an example of an array intersection function that uses a double equals in its comparison line:
if (firstArray[i] == ...
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Hello,
Can you please check the time complexity of “Count the Ones” on page 102? I got confused. It has 2 loops (outer and inner). Let’s...
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In the middle of the page is this sentence:
“Once we find the 4, we can delete it one step:”
This should instead read, “Once we find th...
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Pragmatic Bookshelf
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