#leetcode Development Tutorials & Tips | Roast Dev

100daysofcode 100daysofdevops 100pay 10mistakes 10yearworkanniversary 11 11labs 11tly 11ty 127001

How FAANG Interview Skills Made Me a Better Developer

Nowadays, if you want to work at big tech companies, there are two things you absolutely need to get good at: LeetCode-style problem solving and system design. People often say these skills are only u...

09.04.2025 0 Read More

Leetcode - 19. Remove Nth Node From End of List

You're given a singly linked list. Your task is to remove the nth node from the end and return the updated head of the list. 💡 Approach To solve this efficiently in one pass, we use the two...

09.04.2025 0 Read More

2999. Count the Number of Powerful Integers

2999. Count the Number of Powerful IntegersDifficulty: HardTopics: Math, String, Dynamic ProgrammingYou are given three integers start, finish, and limit. You are also given a 0-indexed string s repre...

10.04.2025 0 Read More

Leetcode - 82. Remove Duplicates from Sorted List II

💡 Approach The idea is to remove all nodes that have duplicate values, even the first occurrence. To do this, we use a two-pass approach: 🔁 First Pass: Traverse the linked list...

11.04.2025 0 Read More

2843. Count Symmetric Integers

2843. Count Symmetric IntegersDifficulty: EasyTopics: Math, EnumerationYou are given two positive integers low and high.An integer x consisting of 2 * n digits is symmetric if the sum of the first n d...

11.04.2025 0 Read More

3272. Find the Count of Good Integers

3272. Find the Count of Good IntegersDifficulty: HardTopics: Hash Table, Math, Combinatorics, EnumerationYou are given two positive integers n and k.An integer x is called k-palindromic if: x is a pa...

12.04.2025 0 Read More

1922. Count Good Numbers

1922. Count Good NumbersDifficulty: MediumTopics: Math, RecursionA digit string is good if the digits (0-indexed) at even indices are even and the digits at odd indices are prime (2, 3, 5, or 7). For ...

13.04.2025 0 Read More

Leetcode - 61. Rotate List

🔄 Approach: Calculate the length of the list. Connect the tail to the head to make it circular. Find the new tail at position (length - k % length). Break the circle after the new tai...

13.04.2025 0 Read More

30 days of DSA coding in JavaScript.

Find a Largest Element in an array. ...

13.04.2025 0 Read More

Leetcode - 86. Partition List

🔍 Approach To solve this cleanly, we use the two-pointer technique: Create two dummy nodes: One (ldummy) for values less than x One (gdummy) for values greater than or equal to x T...

13.04.2025 0 Read More

How FAANG Interview Skills Made Me a Better Developer

Leetcode - 19. Remove Nth Node From End of List

2999. Count the Number of Powerful Integers

Leetcode - 82. Remove Duplicates from Sorted List II

2843. Count Symmetric Integers

3272. Find the Count of Good Integers

1922. Count Good Numbers

Leetcode - 61. Rotate List

30 days of DSA coding in JavaScript.

Leetcode - 86. Partition List

#reading

#popular