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NNikhithabugfreenik.hashnode.devNov 25, 2025 · 2 min read

Boats to Save People

Hey Coders, Today we are going to understand and solve the Boats to Save People problem from LeetCode. Problem: we are given an array consisting of people’s weights , limit (capacity of a boat)and asked to find the minimum number of boats required. C...

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CDCHAO DUleetlog-by-chao.hashnode.devNov 15, 2025 · 3 min read

✨ LeetCode 452 — Minimum Number of Arrows to Burst Balloons (Greedy Explained)

🌟 Introduction This is one of the cleanest interval-greedy problems on LeetCode. You’re given a list of horizontal balloon ranges on the x-axis. If you shoot an arrow at position x, it will burst every balloon whose interval contains x. Your goal is...

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SSandeshsoulsync.techOct 6, 2025 · 6 min read

Greed, Jealousy, Envy: The 3 Silent Energy Drainers

Let’s be honest - most of us don’t need monsters under the bed anymore. We carry our own little villains right in our heads: greed, jealousy, and envy. They don’t scream, they don’t roar - they whisper. And before you know it, they’ve hijacked your p...

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RRedAurtherreleetcode.hashnode.devAug 20, 2025 · 2 min read

Container With Most Water

🧠 Problem Container With Most Water You are given an integer array height of length n. There are n vertical lines drawn such that the two endpoints of the ith line are (i, 0) and (i, height[i]). Find two lines that together with the x-axis form a co...

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RRedAurtherreleetcode.hashnode.devAug 1, 2025 · 1 min read

Minimum Number of Operations to Convert Time

🧠 Problem You are given two strings current and correct representing two 24-hour times. 24-hour times are formatted as "HH:MM", where HH is between 00 and 23, and MM is between 00 and 59. The earliest 24-hour time is 00:00, and the latest is 23:59. ...

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RRedAurtherreleetcode.hashnode.devAug 1, 2025 · 1 min read

Minimum Health to Beat Game

🧠 Problem 🏷️ Tags array, greedy, prefix-sum 📊 Difficulty Medium ✅ Success Rate: 58.7%📥 Submissions: 2,054📈 Accepted: 1,206 ❤️ Reactions 👍 Likes: 30👎 Dislikes: 12 💡 Hints When should you use your armor ability? It is always optimal to use ...

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AHAnni Huanghuanganni.hashnode.devJul 18, 2025 · 6 min read

LeetCode Daily Challenge-2163: Minimum Difference in Sums After Removal of Elements(Hard, Java, DP+priorityQueue+greedy)

Problem Statement LeetCode 2163: Minimum Difference in Sums After Removal of Elements Difficulty: Hard Topics: Array, Dynamic Programming, Heap (Priority Queue) Date: 18 July 2025 You are given a 0-indexed integer array nums consisting of 3 * n el...

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AHAnni Huanghuanganni.hashnode.devJul 13, 2025 · 2 min read

LeetCode 435 Non-overlapping Intervals - Greedy(Med, Java, O(nlogn))

Problem Statement LeetCode 435. Non-overlapping Intervals Given an array of intervals intervals where intervals[i] = [starti, endi], return the minimum number of intervals you need to remove to make the rest of the intervals non-overlapping. Exampl...

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AHAnni Huanghuanganni.hashnode.devJul 13, 2025 · 3 min read

LeetCode 316 Remove Duplicate Letters

Problem Overview LeetCode 316 Remove Duplicate Letters Remove duplicate letters from a string such that every letter appears exactly once, and the result is the lexicographically smallest possible string. Algorithm Breakdown Step 1: Track Last Occu...

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FKFaiaz Khancodelikeyoumeanit.hashnode.devJul 11, 2025 · 4 min read

Greedy Algorithms – When Local Choices Lead to Global Wins

Welcome to the chaotic elegance of Greedy Algorithms — where being selfish is sometimes exactly the right move We’ll break down: What greedy algorithms actually are When they work and (importantly) when they don’t Real-world examples + classic pro...

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#greedy

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Trending tags this week

Boats to Save People

✨ LeetCode 452 — Minimum Number of Arrows to Burst Balloons (Greedy Explained)

Greed, Jealousy, Envy: The 3 Silent Energy Drainers

Container With Most Water

Minimum Number of Operations to Convert Time

Minimum Health to Beat Game

LeetCode Daily Challenge-2163: Minimum Difference in Sums After Removal of Elements(Hard, Java, DP+priorityQueue+greedy)

LeetCode 435 Non-overlapping Intervals - Greedy(Med, Java, O(nlogn))

LeetCode 316 Remove Duplicate Letters

Greedy Algorithms – When Local Choices Lead to Global Wins