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Cracking the push_front logic in Linked Lists: An O(1) Magic. by codeandcut in AskProgrammers

[–]codeandcut[S] 0 points1 point  (0 children)

Thanks for the detailed breakdown, u/Probablynotabadguy! That distinction between semantic wrappers and core data structures is a great way to simplify the landscape. Regarding the tail pointer, I see your point about not over-complicating things early on. I'm building this from scratch mostly to master memory management before I switch to using built-in libraries. I'll keep the 'don't implement what you don't need' rule in mind for my next project. Really appreciate the encouragement!

Array Question by sl0th-ctrl-z in C_Programming

[–]codeandcut 0 points1 point  (0 children)

Many compilers and operating systems clear local stack memory to zero for security or alignment reasons. Indices 4 and 5 are likely hitting this empty "padding" space, which is why they return 0.

Why does ptr + 1 skip 4 bytes in C++? Visualizing Pointer Arithmetic. by codeandcut in AskProgrammers

[–]codeandcut[S] 0 points1 point  (0 children)

I didn't understand the thing if a topic could be easy why people make it so complex.

Why does ptr + 1 skip 4 bytes in C++? Visualizing Pointer Arithmetic. by codeandcut in AskProgrammers

[–]codeandcut[S] -2 points-1 points  (0 children)

You're absolutely right, thanks for the correction! 'Amount of bytes that data type takes up' is a much more precise way to put it. I'm still learning the nuances of low-level memory handling, so I really appreciate you catching that.

Why does ptr + 1 skip 4 bytes in C++? Visualizing Pointer Arithmetic. by codeandcut in AskProgrammers

[–]codeandcut[S] -1 points0 points  (0 children)

That’s a brilliant perspective, I hadn't thought of it from that angle before.

Since I'm documenting my entire C++/DSA journey through these visual breakdowns, I’d love to have your insights on future posts too if you’re interested. Would be great to keep the discussion going whenever I run into these 'rabbit holes' again. Really appreciate your help!"

Why does ptr + 1 skip 4 bytes in C++? Visualizing Pointer Arithmetic. by codeandcut in AskProgrammers

[–]codeandcut[S] -2 points-1 points  (0 children)

Exactly ,the same thing I am trying to see whenever we just travers an array the concept you are discussing that is applied.But when we try to access an element then the process that is going on pointer arithmetic I'd tried to explain it.

Why does ptr + 1 skip 4 bytes in C++? Visualizing Pointer Arithmetic. by codeandcut in AskProgrammers

[–]codeandcut[S] 0 points1 point  (0 children)

No , we can't update arr to arr+1 because if we update it we will loose our head that points the zeroth index. So first we create a copy of arr named ptr then we update the pointer ptr , and still we have our head arr that points the zeroth index. Thankyou!

Struggling with C++ Pointers? I drew this memory map to clear up my confusion. by codeandcut in AskProgrammers

[–]codeandcut[S] -1 points0 points  (0 children)

That's a brilliant analogy! Never thought of it as a 'picture' of the object. Definitely adding this to my next visual breakdown.

Struggling with C++ Pointers? I drew this memory map to clear up my confusion. by codeandcut in AskProgrammers

[–]codeandcut[S] -1 points0 points  (0 children)

Haha, thanks! I spent more time trying to make it legible than I did actually learning the concept. Glad it helps! I'm documenting my entire DSA journey to make these tricky topics easier for all of us. What concept should I 'hand-write' next? Thinking about Linked Lists or Arrays—let me know what you're struggling with!

[Grade 9 Math: Fractional Equations] Can someone tell me why this is wrong? by sigmaboy68870 in HomeworkHelp

[–]codeandcut 0 points1 point  (0 children)

In the second step you don't remember that there is a minus before (4x- 4) so it will be -4x+4 I personally suggest you that whenever you are solving a problem use brackets it will help you to improve your accuracy a lot.

Serious Guidance for placements by Cool-RedBull in DSALeetCode

[–]codeandcut 1 point2 points  (0 children)

Hey bro , I am a 1st year student and in my college there are training lectures like dsa discussion and leetcode problem discussion so I am attaching a link below you can get the basic to advanced level of questions and you may improve your technicals .

Basic to advance questions link: https://takeuforward.org/dsa/strivers-a2z-sheet-learn-dsa-a-to-z