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Python dictionary (dict), Leetcode 1 two sum, and web applications

Welcome to Day 1 of my DSA Daily Series! In this video, we break down the classic Two Sum problem step by step using: ...

LeetCode 2025: Split Array Into Two Arrays to Minimize Sum Difference Difficulty: Hard Topics: Array, Backtracking, Binary ...

LeetCode 1874: Minimize Product Sum of Two Arrays Difficulty: Medium Topics: Array, Greedy, Math, Recursion, Sorting ...

LeetCode 2035: Partition Array Into Two Arrays to Minimize Sum Difference Difficulty: Hard Topics: Array, Backtracking, Binary ...

6 Hour LeetCode Marathon - Solve 100+ Problems (Full Course) Welcome to the ULTIMATE LeetCode coding marathon!

Solving 3SUM isn't just about finding three numbers that add up to zero — it's about understanding a core interview pattern used ...

Struggling with array and string problems in coding interviews? The Two-Pointer Technique is one of the most powerful and ...

"Count Pairs With Target Sum | Two Pointer Method Explained!” “Pairs With Given Sum | Optimal Approach for Arrays ...

LeetCode 1880: Check if Word Equals Summation of Two Words Difficulty: Easy Topics: Array, Math, String ⏱️ Timestamps: ...

Hashing is arguably the MOST IMPORTANT technique in coding interviews. It turns O(n²) solutions into O(n) and solves problems ...

LeetCode 1995: Count Special Quadruplets Difficulty: Easy Topics: Array, Hash Table, Math, Sorting, Two Pointers ...

LeetCode 1679: Max Number of K-Sum Pairs Difficulty: Medium Topics: Array, Hash Table, Math, Sorting, Two Pointers ...

Count Triplets Equal to Target | Two Pointers + Combinatorics | Optimal O(n²) DSA Pattern Explained Triplet Sum Count | Two ...

LeetCode 2198: Number of Single Divisor Triplets Difficulty: Hard Topics: Array, Math, Sorting, Two Pointers ⏱️ Timestamps: ...

In this video, I solved the “Maximum Twin Sum of a Linked List” problem using TWO powerful approaches: 1️⃣ Using Stack ...

Two Sum - LeetCode - https://leetcode.com/problems/two-sum/description/ Top K Frequent Elements ...

LeetCode 2179: Count Good Triplets in an Array Difficulty: Hard Topics: Array, Binary Search, Sorting, Tree, Two Pointers ...

LeetCode 2176: Count Equal and Divisible Pairs in an Array Difficulty: Easy Topics: Array, Math, Sorting, Two Pointers ...

LeetCode 1990: Count the Number of Quadruple Pairs Difficulty: Medium Topics: Array, Sorting, Two Pointers ...