We will be covering important DSA question majorly in Java with solution preferred practice link or reference link also be there you just need to follow the content accordingly !

**1. Array **

**Binary Search**
**Reverse Array**
**Two Arrays are equal or not**
**First Element to Occur K items**
**Subarray with given sum**
**Missing number in array**
**Sort an array of 0s, 1s and 2s**
**Leaders in an array**
**Largest subarray with 0 sum**
**Array Subset of another array**
**Longest Common Prefix in an Array**
**Minimize the sum of product**
**Find all pairs with a given sum**
**Minimum number of jumps**
**Kadane's Algorithm**
**Minimize the Heights**
**Minimum Swaps to Sort**
**Swapping pairs make sum equal**
**Find the element that appears once in sorted array**
**Anagram**
**First non-repeating character in a stream**
**Smallest window in a string containing all the characters of another string**

**2. Recursion**

**3. Sorting**

**4. Searching**

**5. String**

**6. Linked List**

**7. Stack -Queue**

**8. Hashing**

**9. Tree**

**10. Dynamic Programing**

**11. Graphs**

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