### Week 1 problems solutions

- HackerRank Plus Minus problem solution
- HackerRank Mini-Max Sum problem solution
- HackerRank Time Conversion problem solution
- HackerRank Breaking the Records problem solution
- HackerRank Camel Case 4 problem solution
- HackerRank Divisible Sum Pairs problem solution
- HackerRank Sparse Arrays problem solution

### Week 2 problems solution

- HackerRank Lonely Integer problem solution
- HackerRank Grading Students' problem solution
- HackerRank Flipping bits problem solution
- HackerRank Diagonal Difference problem solution
- HackerRank Counting Sort 1 problem solution
- HackerRank Counting Valleys problem solution
- HackerRank Pangrams problem solution
- HackerRank Mars Exploration problem solution

### Week 3 problems solutions

- HackerRank Permuting Two Arrays problem solution
- HackerRank Subarray Division 2 problem solution
- HackerRank XOR Strings 3 problem solution
- HackerRank Sales by Match problem solution
- HackerRank Migratory Birds problem solution
- HackerRank Maximum Perimeter Triangle problem solution
- HackerRank Zig Zag Sequence problem solution
- HackerRank Drawing Book problem solution

### Week 4 problems solutions

- HackerRank Picking Numbers problem solution
- HackerRank Left Rotation problem solution
- HackerRank Number Line Jumps problem solution
- HackerRank Separate the Numbers problem solution
- HackerRank Closest Numbers problem solution
- HackerRank Tower Breakers problem solution
- HackerRank Minimum Absolute Difference in an Array problem solution
- HackerRank Caesar Cipher problem solution

### Week 5 problems solutions

- HackerRank Max-Min problem solution
- HackerRank Strong Password problem solution
- HackerRank Dynamic Array problem solution
- HackerRank Smart Number 2 problem solution
- HackerRank Missing Numbers problem solution
- HackerRank The Full Counting Sort problem solution
- HackerRank Grid Challenge problem solution
- HackerRank Sansa and XOR problem solution

### Week 6 problem solution

- HackerRank Prime Dates problem solution
- HackerRank Sherlock and Array problem solution
- HackerRank Misere Nim problem solution
- HackerRank Gaming Array 1 problem solution
- HackerRank Forming a Magic Square problem solution
- HackerRank Recursive Digit Sum problem solution
- HackerRank Counter game problem solution
- HackerRank Sum vs XOR problem solution

### Week 7 problems solutions

- HackerRank The Bomberman Game problem solution
- HackerRank New Year Chaos problem solution
- HackerRank Goodland Electricity problem solution
- HackerRank Sherlock and the Valid String problem solution
- HackerRank Climbing the Leaderboard problem solution
- HackerRank Reverse a linked list problem solution
- HackerRank Reverse a doubly linked list problem solution
- HackerRank Insert a node at a specific position in a linked list problem solution

### Week 8 problems solutions

- HackerRank Merge two sorted linked lists problem solution
- HackerRank Cycle Detection problem solution
- HackerRank Ice Cream Parlor problem solution
- HackerRank Inserting a Node into a sorted doubly linked list problem solution
- HackerRank Queue using Two Stacks problem solution
- HackerRank Sherlock and Anagrams problem solution
- HackerRank Super Reduced String problem solution
- HackerRank Balanced Brackets problem solution

### Week 9 problems solutions

- HackerRank Waiter problem solution
- HackerRank Stock Maximize problem solution
- HackerRank Simple Text Editor problem solution
- HackerRank Equal Stacks problem solution
- HackerRank The Coin Change problem solution
- HackerRank Two Characters problem solution
- HackerRank The Maximum Subarray problem solution
- HackerRank Chief Hopper problem solution

### Week 10 problems solutions

- HackerRank Lego Blocks problem solution
- HackerRank Weighted Unifrom Strings problem solution
- HackerRank Permutation game problem solution
- HackerRank QHEAP1 problem solution
- HackerRank Largest Rectangle problem solution
- HackerRank Jesse and Cookies problem solution
- HackerRank Hackerland Radio Transmitters problem solution
- HackerRank Minimum Operations 4 problem solution

### Week 11 problems solutions

- HackerRank Queries with Fixed Length problem solution
- HackerRank Common Child problem solution
- HackerRank Array Manipulation problem solution
- HackerRank Highest Value Palindrome problem solution
- HackerRank Lily's Homework problem solution
- HackerRank Tree: Postorder Traversal problem solution
- HackerRank Tree: Preorder Traversal problem solution
- HackerRank Tree: Huffman Decoding problem solution

### Week 12 problems solutions

- HackerRank Tree: Height of a Binary Tree problem solution
- HackerRank Binary Search Tree: Lowest Common Ancestor problem solution
- HackerRank Prim's (MST): Special Subtree problem solution
- HackerRank Bead Ornaments problem solution
- HackerRank Floyd: City of Blinding Lights problem solution
- HackerRank No Prefix Set problem solution
- HackerRank Merging Communities problem solution
- HackerRank Castle on the Grid problem solution

### Week 13 problem solution

- HackerRank Find the Running Median problem solution
- HackerRank Contacts problem solution
- HackerRank Roads and Libraries problem solution
- HackerRank Journey to the Moon problem solution
- HackerRank Gena Playing Hanoi problem solution
- HackerRank Cube Summation problem solution
- HackerRank Jack Goes to Rapture problem solution
- HackerRank Minimum Loss 1 problem solution
- HackerRank Short Palindrome problem solution

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