Competitive Coding

What is algorithm? Algorithm is well-define step by step procedure to solve the specific problem. Why should you care ? why not just learn full stack dev.     what is you job ? Solving Problems!      problems: already solved : face detection, shorted route, ... (use external lib) specific to the company's needs: Facebook suggestions Why do Big Companies ask algorithms in interviews?  Questions about language/technology   Algorithm ? Approaching newly seen problems  Discussing different approaches (brainstorming session) Articulation ideas, communication skills  Adaptability picking your brain : Innovative product that uses algorithm? Google search being able to auto-correct and suggest google Maps directions : Dijkstra , A* , kd tree, range search Google translate and direction Self Driving cars Cleaning Robot detection the house map Space X making reusable spaceship that land back earth. Correctness and Performance ? An algorithm is ...