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AKAJIT KUMAR PANDITajitkumarpandit.nakprc.comApr 24 · 6 min read

Finding Triplets That Sum to Zero: A Deep Dive into threeSum

Hello everyone! Today, we're going to unravel a classic problem in computer science: finding all unique triplets in an array that sum up to zero. This is a common interview question and a great way to

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SFSyed Faysel Ahammad Rajofaysel.hashnode.devMar 11 · 6 min read

Learning DSA with Java

A focused 15-day plan can give you a fast, practical start in data structures and algorithms (DSA) using Java. The goal of this plan is not to make you an expert in two weeks, but to give you a solid

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Hhimanshublogs-himanshu.hashnode.devFeb 13 · 2 min read

Day 11 - Two Integer Sum II

Question Given an array of integers numbers that is sorted in non-decreasing order. Return the indices (1-indexed) of two numbers, [index1, index2], such that they add up to a given target number target and index1 < index2. Note that index1 and index...

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Hhimanshublogs-himanshu.hashnode.devFeb 12 · 2 min read

Day 10 - Valid Palindrome

Question Given a string s, return true if it is a palindrome, otherwise return false. A palindrome is a string that reads the same forward and backward. It is also case-insensitive and ignores all non-alphanumeric characters. Note: Alphanumeric chara...

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Hhimanshublogs-himanshu.hashnode.devFeb 11 · 3 min read

Day 9 - Longest Consecutive Sequence

Question Given an array of integers nums, return the length of the longest consecutive sequence of elements that can be formed. A consecutive sequence is a sequence of elements in which each element is exactly 1 greater than the previous element. The...

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Hhimanshublogs-himanshu.hashnode.devFeb 5 · 5 min read

Day 4 - Group Anagrams

Question Given an array of strings strs, group all anagrams together into sublists. You may return the output in any order. An anagram is a string that contains the exact same characters as another string, but the order of the characters can be diffe...

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AGARCHANA GURUSAMYarchana-code-diary.hashnode.devFeb 4 · 2 min read

Problem: Leet Code 7 - Reverse Integer

QUESTION: Given a signed 32-bit integer x, return x with its digits reversed. If reversing x causes the value to go outside the signed 32-bit integer range [-2<sup>31</sup>, 2<sup>31</sup> - 1], then return 0. Assume the environment does not allow yo...

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MSMuppidi Srinivassrinivastechblog.hashnode.devFeb 2 · 10 min read

Understanding Fast I/O, Buffer, and Flushing in C++

When we write c++ programs, especially for competitive programming or large input/output problems, we often see these three lines at the top : ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

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RRicharichak.hashnode.devJan 30 · 5 min read

🌟DAY 25 Remove Outermost Parentheses: The Ultimate Guide to Depth

. (Everything you need. Nothing you don’t.) Hello everyone 👋Welcome back to our DSA journey. Today’s problem is not hard.But it is deep. It looks like a simple string question, yet it quietly teaches you: How to read loops How to track state How...

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RRicharichak.hashnode.devJan 27 · 6 min read

📘 Day 22: Leaders in an Array

(The problem that confused me… until it didn’t) I’ll be very honest today. When I first saw “Leaders in an Array”, my brain went completely blank.I didn’t even understand what the problem was asking, forget about solving it. I googled.I watched video...

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Trending tags this week

Finding Triplets That Sum to Zero: A Deep Dive into threeSum

Learning DSA with Java

Day 11 - Two Integer Sum II

Day 10 - Valid Palindrome

Day 9 - Longest Consecutive Sequence

Day 4 - Group Anagrams

Problem: Leet Code 7 - Reverse Integer

Understanding Fast I/O, Buffer, and Flushing in C++

🌟DAY 25 Remove Outermost Parentheses: The Ultimate Guide to Depth

📘 Day 22: Leaders in an Array