Leetcode Solutions

This repository contains a curated collection of solutions to various LeetCode problems. Each solution is crafted to demonstrate efficient problem-solving techniques and best coding practices across diverse problem types and difficulty levels.

Key Features

• Comprehensive Solutions: Covers a wide range of problem categories, including arrays, linked lists, dynamic programming, and more.
• Optimal Approaches: Emphasis on performance with optimized algorithms and clean, readable code.
• Code Documentation: Solutions include inline comments and explanations to enhance understanding and facilitate learning.

This repository serves as a resource for anyone looking to deepen their knowledge of data structures and algorithms or to prepare for technical interviews.

Default Copy Paste

• Time Complexity: O()
• Space Complexity: O()
• by ar-sayeem [Month DD, YYYY]

LeetCode Topics

Hash Table

Problem Name	Difficulty
0003-longest-substring-without-repeating-characters	Medium
0073-set-matrix-zeroes	Medium
0268-missing-number	Easy
0448-find-all-numbers-disappeared-in-an-array	Easy
1980-find-unique-binary-string	Medium

String

Problem Name	Difficulty
0003-longest-substring-without-repeating-characters	Medium
1758-minimum-changes-to-make-alternating-binary-string	Easy
1784-check-if-binary-string-has-at-most-one-segment-of-ones	Easy
1869-longer-contiguous-segments-of-ones-than-zeros	Easy
1980-find-unique-binary-string	Medium

Sliding Window

Problem Name	Difficulty
0003-longest-substring-without-repeating-characters	Medium

Array

Problem Name	Difficulty
0073-set-matrix-zeroes	Medium
0238-product-of-array-except-self	Medium
0268-missing-number	Easy
0287-find-the-duplicate-number	Medium
0448-find-all-numbers-disappeared-in-an-array	Easy
0485-max-consecutive-ones	Easy
1582-special-positions-in-a-binary-matrix	Easy
1980-find-unique-binary-string	Medium

Matrix

Problem Name	Difficulty
0073-set-matrix-zeroes	Medium
1582-special-positions-in-a-binary-matrix	Easy

Math

Problem Name	Difficulty
0268-missing-number	Easy

Binary Search

Problem Name	Difficulty
0268-missing-number	Easy
0287-find-the-duplicate-number	Medium

Bit Manipulation

Problem Name	Difficulty
0268-missing-number	Easy
0287-find-the-duplicate-number	Medium
1009-complement-of-base-10-integer	Easy

Sorting

Problem Name	Difficulty
0268-missing-number	Easy

Backtracking

Problem Name	Difficulty
1980-find-unique-binary-string	Medium

Prefix Sum

Problem Name	Difficulty
0238-product-of-array-except-self	Medium

Two Pointers

Problem Name	Difficulty
0287-find-the-duplicate-number	Medium