MetLife Interview Questions

MetLife is a start-up in medical e-commerce industry. Interview process is 1 online coding test followed by 2 f2f interviews. Could not recollect the online coding test problems. Below are the interview questions Round-1 1) Find all anagrams in a given sorted dictionary 2) Given pack of cards represented as A1,A2...A13 and B1,B2,..B13, and C1,c2,...c13 and d1,d2..d13. You are given a file which has 51 card numbers. Only 1 card is missing. Find the missing card. 3) How do you write an order service which scales horizontally. Into how many services can you split this. An architecture/design diagram and explanation is required Round-2 1) http://www.programmerinterview.com/index.php/puzzles/25-horses-3-fastest-5-races-puzzle/ 2) http://www.mathsisfun.com/puzzles/weighing-9-balls-solution.html 3) Write JSON Parser. What are the Data Structures used for this? 4) Write DFS code. What are the Data Structures used for this? 5) https://www.geeksforgeeks.org/largest-sum-contiguous-subarray/ 6) In an array all elements are repeated twice except one element. Find the element. eg: 2, 3, 4, 4, 3 -- In this 2 is the element which is not repeated.