OpenSSL OpenSSL Libraries: LIBSSL - SSL TLS related operations. LIBCRYPTO - Cryptographic operations like signing, hashing, key aggrement. 5 Pillars of Cryptography Integrity Confiden...

Golang Go is a statically typed, compiled high-level programming language designed at Google by Robert Griesemer, Rob Pike, and Ken Thompson. It is syntactically similar to C, but also has memory s...

RBAC in Github Action Why? RBAC (Role-Based Access Control) in GitHub Actions provides a mechanism to control who can trigger specific workflows. By using a permissions.yml file, you can define th...

Leetcode - 3110. Score of a String You are given a string s. The score of a string is defined as the sum of the absolute difference between the ASCII values of adjacent characters. R...

Leetcode - 100. Same Tree Given the roots of two binary trees p and q, write a function to check if they are the same or not. Two binary trees are considered the same if they are str...

Leetcode - 226. Invert Binary Tree Given the root of a binary tree, invert the tree, and return its root. Solution func invertTree(root *TreeNode) *TreeNode { if root == nil{ re...

Domain Name System (DNS) We know about IP addresses that enable every machine to connect with other machines. But as we know humans are more comfortable with names than numbers. It’s easier to rem...

Tree - DSA in Go What are trees? Do you remember what a linked list looked like? Linked lists consisted of several nodes pointing to each other. HEAD -> Node A -> Node B -> Node C -> ...

Leetcode - 33. Search in Rotated Sorted Array There is an integer array nums sorted in ascending order (with distinct values). Prior to being passed to your function, nums is possibl...

Leetcode - 104. Maximum Depth of Binary Tree Given the root of a binary tree, return its maximum depth. A binary tree’s maximum depth is the number of nodes along the longest path fr...