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AAnnethtml-portfolio.hashnode.dev1d ago · 5 min read

Codeforces Journey #3: Learning Arrays Through Beginner-Friendly Problems

After solving my first 20 Codeforces problems, I decided to focus on one of the most fundamental topics in Data Structures—Arrays. Instead of randomly solving problems, I chose problems that helped me

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AAnnethtml-portfolio.hashnode.dev3d ago · 4 min read

Arrays in Python: A Beginner's Guide to Common Operations

Arrays are one of the first data structures every programmer learns. They allow us to store multiple values in a single variable and access them efficiently using indexes. In Python, we commonly use l

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PJPuja Jorwarpujajorwar.hashnode.devJul 1 · 8 min read

Finding Majority Elements (> n/3) — From Brute Force to Boyer-Moore

When solving array problems, it is easy to stop once your code passes the test cases. But the real learning happens when you push from a working solution to an optimal one. Today, let's look at the Ma

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PJPuja Jorwarpujajorwar.hashnode.devJun 30 · 7 min read

Next Permutation — The 3-Step Algorithm That Made Everything Click

Most solutions I found online just showed me code with zero explanation of why it works.After solving this problem, I finally understood the pattern. Let me save you the confusion. 📖 First — What is

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SBSimran Balisimranbali-dsa.hashnode.devJun 16 · 6 min read

LC 41. First Missing Integer (Hard)

Problem Statement Given an unsorted integer array A, return the smallest missing positive integer. You must implement an algorithm that runs in O(n) time and uses O(1) auxiliary space. Example 1 I

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PAPixel and Codelearning-data-structures.hashnode.devMay 21 · 8 min read

Arrays

An array is a linear data structure used to store a group of elements of the same data type together in a single variable. These elements are stored in continuous (contiguous) memory locations, and ea

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AKArun Kumar Venkitaramanaklogs.hashnode.devMay 10 · 3 min read

Why NumPy Transpose is almost instant - Understanding Strides

Most operations on large NumPy arrays are computationally expensive, so I naturally assumed that transposing one would involve rearranging huge chunks of data in memory. But when I tried it and saw it

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NRNavdeep Rohillajavascript-journey-by-navdeep.hashnode.devMay 10 · 3 min read

Spread vs Rest Operators

At first glance, the triple-dot ... syntax in JavaScript looks like one thing. But it actually does two very different jobs: spread expands elements, while rest collects them. Confused? You’re not alo

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NRNavdeep Rohillajavascript-journey-by-navdeep.hashnode.devMay 10 · 9 min read

Array Flatten in JS

Introduction In JavaScript, Array Flattening is the process of taking a nested array (an array that contains other arrays) and "unwrapping" those inner arrays into a single, flat list of elements. Thi

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NRNavdeep Rohillajavascript-journey-by-navdeep.hashnode.devMay 10 · 8 min read

Destructuring in JS

What destructuring means In JavaScript, destructuring is a special syntax that allows you to "unpack" values from arrays or properties from objects and assign them directly to separate variables. Inst

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#arrays

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#arrays

Explore Hashnode

Trending tags this week

Codeforces Journey #3: Learning Arrays Through Beginner-Friendly Problems

Arrays in Python: A Beginner's Guide to Common Operations

Finding Majority Elements (> n/3) — From Brute Force to Boyer-Moore

Next Permutation — The 3-Step Algorithm That Made Everything Click

LC 41. First Missing Integer (Hard)

Arrays

Why NumPy Transpose is almost instant - Understanding Strides

Spread vs Rest Operators

Array Flatten in JS

Destructuring in JS