LinkedIn interview questions

1st call - Phone call with the Recruiter just to talk about what you've done and what currently interests you. Basically to directly communicate with you to see if you'd be a good fit for the company to want to go through the interview process with you 2nd call - Technical phone interview #1 using Collabedit. Given two questions to solve in one hour. First question was to find the lowest common ancestor given two nodes and the second question was to determine if two strings are isomorphic (there exact question can be found on this site) 3rd call - Technical phone interview #2 also using Collabedit. Given two questions to solve in one hour as well. First question was find the largest subsequence given an array that yields the largest sum. The second question was a modification of the first that required me to find the largest subsequence of the given array that yields the largest PRODUCT. Didn't complete the code for the second question in time. Side note, recruiters were really easy to talk to and really speedy with their response.

Got a recruiter called for phone interview after couple days applied for this position on Linkedin website. Scheduled for technical interview 2 days later. After first technical phone interview, they scheduled me for one more technical phone interview with other team members. and after that recruiter called me that I did not attend team's expectation.. whole process took around 3 weeks.