Find Top K Frequent Elements in an Array (with code)
Here is the solution to the leetcode problem to find top k frequent elements in an array using hashmap approach.
Majority Element Problem (C++, Java, Python)
Understand the Majority Element leetcode problem, using Boyer-Moore majority vote algorithm with implementation in C++, Java, and Python.
Longest Palindromic Subsequence (C++, Java, Python)
Learn how to find the longest palindromic subsequence using dynamic programming with implementation in C++, Java, and Python.
Longest Common Subsequence (C++, Java, Python)
To become a good programmer, you have to solve a lot of programming problems first to master this skill. One such common problem is LCS, which is asked in many...
Word Search II Problem (C++, Java, Python)
Learn how to solve the Word Search 2 leetcode problem using the Backtracking approach in C++, Java, and Python.
2 Keys Keyboard Problem (C++, Java, Python)
Learn how to solve the leetcode problem of 2 keys keyboard using dynamic programming in C++, Java, and Python.
4 Sum | Find Four Elements that Adds to Given Value
Understand the different ways to solve the 4 Sum problem using naive approach and 4 pointer method with examples in C++, Python and Java.
Perfect Squares Problem (to Add Sum to Given Number)
Understand how to solve the leetcode problem of Perfect Square to find minimum perfect squares that sum up to a given number.
Best Time to Buy and Sell Stock Problem (with code)
Understand how to solve Leetcode problem of Best Time to Buy and Sell Stock using dynamic programming and greedy approach.
Word Ladder Problem (C++, Java, and Python)
Understand the word ladder programming problem from leetcode and get the solution in C++, Java, and Python.