Here are

**HackerRank 1 Month Preparation kit All Problems solutions**with practical programs and code in**C, C++, Java, Python, and Javascript**Programming languages. if you need help, comment with your queries and questions in the comment section on particular problem solutions.### Week 1 problems solutions

- HackerRank Plus Minus problem solution
- HackerRank Mini-Max Sum problem solution
- HackerRank Time Conversion problem solution
- HackerRank Sparse Arrays problem solution
- HackerRank Lonely Integer problem solution
- HackerRank Flipping bits problem solution
- HackerRank Diagonal Difference problem solution
- HackerRank Counting Sort 1 problem solution
- HackerRank Pangrams problem solution
- HackerRank Permuting Two Arrays problem solution
- HackerRank Subarray Division 1 problem solution
- HackerRank XOR Strings 2 problem solution

### Week 2 problems solutions

- HackerRank Sales by Match problem solution
- HackerRank Zig Zag Sequence problem solution
- HackerRank Drawing Book problem solution
- HackerRank Tower Breakers problem solution
- HackerRank Caesar Cipher problem solution
- HackerRank Max-Min problem solution
- HackerRank Dynamic Array problem solution
- HackerRank Grid Challenge problem solution
- HackerRank Prime Dates problem solution
- HackerRank Sherlock and Array problem solution
- HackerRank Recursive Digit Sum problem solution
- HackerRank Counter game problem solution
- HackerRank Sum vs XOR problem solution

### Week 3 problems solutions

- HackerRank The Bomberman Game problem solution
- HackerRank New Year Chaos 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
- HackerRank Merge two sorted linked lists problem solution
- HackerRank Ice Cream Parlor problem solution
- HackerRank Queue using Two Stacks problem solution
- HackerRank Balanced Brackets problem solution
- HackerRank Waiter problem solution
- HackerRank Simple Text Editor problem solution

### Week 4 problems solutions

- HackerRank Equal Stacks problem solution
- HackerRank The Maximum Subarray problem solution
- HackerRank Lego Blocks problem solution
- HackerRank QHEAP1 problem solution
- HackerRank Jesse and Cookies problem solution
- HackerRank Radio Transmitters problem solution
- HackerRank Queries with Fixed Length problem solution
- HackerRank Array Manipulation problem solution
- HackerRank Highest Value Palindrome problem solution
- HackerRank Lily's Homework problem solution
- HackerRank Tree: Preorder Traversal problem solution
- HackerRank Tree: Huffman Decoding problem solution
- HackerRank Binary Search Tree: Lowest Common Ancestor problem solution
- HackerRank No Prefix Set problem solution
- HackerRank Castle on the Grid problem solution
- HackerRank Roads and Libraries problem solution

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