Problem Overview The task is LeetCode problem 268. Missing Number – given an array nums containing n distinct numbers taken from the range 0, n, find the one n...

Today I started off with writing algorithms. I thought of some simple game ideas and broke those down into algorithms, first sketching them on paper before swit...

Hey everyone! 👋 Today, we're tackling a string manipulation problem: Counting Vowels. The goal is to write a function that counts the number of vowels in a giv...

🌲 Beginner‑Friendly Guide: Maximum Level Sum of a Binary Tree – LeetCode 1161 !Cover image for “Maximum Level Sum of a Binary Tree” – LeetCode 1161 C++, Pytho...

Problem Statement Given an integer array nums, return the sum of divisors of the integers in that array that have exactly four divisors. If there is no such in...

Read more about Boyer–Moore Majority Voting: Why It Works, Why It ...

!Cover image for 🍀 Beginner-Friendly Guide 'Four Divisors' – LeetCode 1390 C++, Python, JavaScripthttps://media2.dev.to/dynamic/image/width=1000,height=420,fit...

🧩 Problem Statement Given an array and an integer k, find the k‑th largest element. Example - Input: 3, 2, 1, 5, 6, 4, k = 2 - Output: 5 🧠 My First Thought:...

The Logic Building The Strategy The general rule for a prime number is that it’s only divisible by 1 and itself. However, a common confusion is that composite...

2026.01.03일자 입니다. 수학 1 풀어보았습니다. 진법 변환 문제 링크 cpp include include using namespace std; int main { string N; int B; cin >> N >> B; int res = 0; for int i = 0; i in...

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!Cover image for 🎨 Beginner‑Friendly Guide ‘Number of Ways to Paint N 3 Grid’ – LeetCode 1411 C++, Python, JavaScripthttps://media2.dev.to/dynamic/image/width=...