Competitive Programming Day 12??

??Welcome to Day 12 of the Journey! Today I simply put the rust on my already-greased problem-solving skills by attacking strings and linked lists. let's look what challenges i tackled today.

Key concepts of day 12:

1. In today challenge i was given two linked lists, and the digit is stored in reverse order, then this was the problem of getting the sum. I worked on maintaining the carries and proper addition, which was key to getting my solution to this problem right.

2. I solved some problems which involved methods of expanding around expectations or using dynamic programming to consider the longest text that is read both from left to right and from right to left.

3. I used the two-pointer technique for finding and deleting the node efficiently.

4. Reverse nodes in a linked list in k-sized groups. This had to be done with delicate pointer manipulation, so after each group of k-sized nodes was reversed, they stood in their correct position.

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All of today's problems were pretty hard and really nice. They are shaping me to perfect my fundamentals of strings and linked lists. Excited to continue and push my boundaries more. Hopefully, you have learned something from this article. Stay tuned for more updates on my journey!

"Until then, keep coding, keep learning, and never stop challenging yourself. The path to mastery seems to be paved through curiosity and persistence for me."??

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