SIGMA-9-JAVA-DSA-LIBRARY
Learn SIGMA - 9 JAVA DSA LIBRARY by Apna college with comprehensive video tutorials and hands-on projects.
Meet Your Instructor: Apna-College
Apna College stands as one of India's most influential and accessible programming education platforms, founded by the visionary educator Aman Dhattarwal. With a mission to democratize quality coding education, Apna College has transformed the lives of hundreds of thousands of students through their comprehensive, career-oriented curriculum. The platform's signature Sigma series courses cover everything from foundational programming in Java and C++ to advanced MERN stack development and aptitude preparation. Apna College is renowned for breaking down complex technical concepts into simple, engaging lessons that students can follow regardless of their prior experience. Their unique teaching approach combines practical projects, real-world applications, and industry insights, ensuring students are well-prepared for both academic excellence and professional success in the competitive tech industry.
Experience: 5+ years
Students Helped: 200000+
Specialization: Complete Programming Education
Course Overview
This comprehensive course is designed to take you from foundational concepts to advanced implementation in complete programming education. You'll learn through comprehensive curriculum designed with career focus, emphasizing hands-on learning, project-based assignments, and industry-relevant skills, building real-world projects that demonstrate your skills and enhance your portfolio.
Whether you're looking to start a new career in technology or advance your current skills, this course provides the structured learning path and practical experience you need to succeed in today's competitive tech industry.
Course Curriculum
Course Content
Remove Duplicates from Sorted Array
Merge Sorted Array
Pascal's Triangle
Missing Number
Merge Two Sorted Lists
Intersection of Two Linked Lists
Palindromic Linked List
Last Stone Weight
Partition List
Sum of Subarray Ranges
Car Pooling
Find K Closest Elements
Kth Largest Element in an Array
Meeting Rooms II
Group Anagram
All Nodes Distance K from Binary Tree
Flatten Binary Tree to Linked List
Minimum No. of Swaps
Rotting Oranges
Number of Islands
Course Schedule
Longest Palindromic Substring
Find Good Days to Rob the Bank
Jump Game
Unique Paths
LRU Cache
Kth Smallest Pair Distance
Median of Two Sorted Arrays
Merge K Sorted Lists
Find Median from Data Stream
Race Car
Longest Valid Parantheses
Sign of the product of an array
Palindrome Number
Valid Palindrome
Defanged IP Address
Number of Substrings with 1s
Next permutation
Linked List Cycle
Number of 1 bits
Reverse a Linked List
Generate Parentheses
Delete a node Explanation
Longest Substring
4 Sum
Valid Stack Sequence Explanation
Reorganize Strings
Longest Increasing Subsequence
Kth row of Pascal's triangle
Invert Binary Tree
Longest Common Prefix
Greatest Common Divisor of Strings
Climbing stairs
Palindrome Partitioning
Rotate image-matrix
Merge Intervals
Word Search
Permutations
Sum Root to Leaf Numbers
Clone graph
Sort list
Longest Consecutive Sequence
Longest Increasing Path in a Matrix
String To Integer
Kth smallest element in a BST
Largest Rectangle in Histogram
Maximal Rectangle
Find the Shortest Superstring
Wildcard matching
Logger Rate Limiter
Single Number
Arranging Coins
Finding the Users Active Minutes
Design a Stack With Increment Operation
Design hit counter
Find the City with the Smallest Number of Neighbors at a Threshold Distance
Design File System
Shortest bridge
Rank Team By votes
Top K frequent words
Online election
Maximum number of occurrences of a substring
Find minimum in rotated sorted array
Unique Path II
Smallest missing non-negative integer after operations
Maximum profit in job scheduling
Sliding window maximum
Minimum time to visit a cell in a grid
Number of ways to form a target string given a dictionary
Count Palindromic Subsequences
Count vowels permutation
Consecutive numbers sum
First Unique Character in String
Find Pivot Element
Power of three
Move Zeroes
Robot return to origin
K-different pairs in an Array
Beautiful Arrangement
Minimum Area of Rectangle
Gas Station
Minimum Path Sum
Product of Array Except Self
Minimum Window Substring
Count Number of Teams
Robot bounded in a circle
Spiral Matrix
Longest Word in Dictionary through Deleting
Knight Probability in Chessboard
Fraction to Recurring Decimal
Shortest subarray with Sum at least K
Reaching Points
Last Substring in Lexicographical Order
Baseball Game
Shortest Distance to a Character
To Lower Case
Toeplitz Matrix
Reverse String II
Minimum index sum of two lists
Remove Element
Length of last word
Subsets
Sum of Square Numbers
Equal row and column pairs
Number of laser beams in a bank
Determine if two strings are close
Check If a String can break another String
Wiggle Sort II
Minimize Maximum Pair Sum in Array
Minimum Number of Swaps to Make The String Balanced
Triangle
Maximum Area of a Piece of Cake After Horizontal And Vertical Cut
Sort Colors
Search a 2D Matrix
Sum in a Matrix
Valid Sudoku
Maximum Bags With Full Capacity of Rocks
Reducing dishes
Unique Paths III
First Missing Positive
Palindrome Partitioning II
Requirements
- Basic computer knowledge
- Internet connection for video streaming
- Code editor (VS Code recommended)
- Motivation to learn and practice
Course Features

Course Details
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