🚀 Striver DSA Sheet

Solving the Striver DSA Sheet in Java, tracked manually using Codolio.

📂 Arrays

Easy

1. Largest Element in an Array – Problem | Solution
2. Second Largest Element (No Sorting) – Problem | Solution
3. Check if Array is Sorted – Problem | Solution
4. Remove Duplicates from Sorted Array – Problem | Solution
5. Rotate Array by one place – Problem | Solution
6. Left Array by D places – Problem | Solution
7. Move Zeroes to End - Problem | Solution
8. Linear Search - Problem | Solution
9. Find the Union - Problem | Solution
10. Find missing number in an array - Problem | Solution
11. Maximum Consecutive Ones - Problem | Solution
12. Number that appears once - Problem | Solution
13. Longest Subarray with Sum K (Positives) - Problem | Solution
14. Longest Subarray with Sum K (Positive and Negative) - Problem | Solution

Medium

1. 2 Sum Problem - Problem | Solution
2. Sort Colors - Problem | Solution
3. Majority Element - Problem | Solution
4. Kadane's Algorithm for Negatives - Problem | Solution
5. Kadane's Algorithm - Problem | Solution
6. Buy and Sell Stocks - Problem | Solution
7. Rearrange Elements by Sign - Problem | Solution
8. Next Permutation - Problem | Solution
9. Leaders in Array - Problem | Solution
10. Longest Consecutive Sequence in Array - Problem | Solution
11. Set Matrix Zeroes - Problem | Solution
12. Rotate Matrix - Problem | Solution
13. Spiral Matrix - Problem | Solution
14. Count Subarrays with Given Sum - Problem | Solution

Hard

1. Pascal's Triangle - Problem | Solution
2. Majority Element (n/3 times) - Problem | Solution
3. Three Sum - Problem | Solution

📂 Binary Search

Binary Search on 1D Arrays

1. Binary Search to find X in sorted array - Problem | Solution
2. Implement Lower Bound - Problem | Solution
3. Implement Upper Bound - Problem | Solution
4. Search Insert Position - Problem | Solution
5. Floor/Ceil in Sorted Array - Problem1 | Problem2 | Solution
6. First and Last Occurrence - Problem | Solution

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🛠️ Tech Stack

• Language: Java
• IDE: VS Code / IntelliJ IDEA
• Tracker: Codolio