Zoho Interview Experience | Set 34 (Off Campus)

Hi!! I Recently attended Zoho off campus. I’st round in Madurai and remaining rounds in Chennai campus.

Round 1: C AND APTITUDE [ 2 HRS ]

TECHNICAL : 20 C Output questions. Questions pointers, Matrix, Arrays, strings. Practice all C output questions set in geeksforgeeks which is more than enough. https://www.geeksforgeeks.org/tag/c-output

APTITUDE : 15 Puzzles. Practice Logical reasoning questions.

Got mail after 2 weeks for second round.

Round 2: SIMPLE CODING [ 3 HRS ]

Coding in system. Allowed to use c/c++/java. They expected the optimized solution for all the questions. Needs to discuss the approach before start solving each question.

1. Given two Strings s1 and s2, remove all the characters from s1 which is present in s2.
   Input: s1=”expErIence”, s2=”En”
   output: s1=”exprIece”
2. Find the next greater element for each element in given array.
   input: array[]={6, 3, 9, 10, 8, 2, 1, 15, 7};
   output: {7, 5, 10, 15, 9, 3, 2, _, 8}
   If we are solving this question using sorting, we need to use any O(nlogn) sorting algorithm.
3. Print all distinct permutations of a given string with duplicate characters.
   https://www.geeksforgeeks.org/distinct-permutations-string-set-2
4. Given a number, find the next smallest palindrome.
5. Given an array with repeated numbers, Find the top three repeated numbers.
   input: array[]={3, 4, 2, 3, 16, 3, 15, 16, 15, 15, 16, 2, 3}
   output: 3, 16, 15

People who completed 4 and above are selected for next round on same day. Try to optimize your solution as much as possible. They will ask you to optimize till you come up with an expected time complexity solution.

Round 3: Advanced Programming round [ 3 HRS ]

This round is mainly based on data structure and oops concepts.
No inbuilt collections are allowed. You need to implement on your own.

Needs to discuss your approach before start solving the problem.

Design a system with following functionalities,

1. SET a variable
2. GET a variable
3. UNSET a variable
4. COUNT NUMBERS OF VARIABLE with given value
5. BEGIN — Begins a new transaction
6. ROLLBACK — Roll back all the commands in the open transaction
7. COMMIT — Commit the transaction

EXAMPLE 1:

SET a 20
GET a 20
SET b 30
GET b 30
SET a 10
GET a 10
UPDATE c 40 No variable named “c”
SET c 30
COUNT 30 2
COUNT 40 null
UNSET a
GET a null

EXAMPLE 2:

GET a null
SET a 30
GET a 30

EXAMPLE 3:

SET a 30
BEGIN
GET a 30
SET a 40
GET a 40
SET b 40
GET b 40
ROLLBACK
GET b null
GET a 30

EXAMPLE 4:

BEGIN
SET a 40
SET b 40
SET c 50
COUNT 40 2
BEGIN
COUNT 40 null
COMMIT
COUNT 40 2
BEGIN
SET c 10
GET c 10
ROLLBACK
GET c 50

#My solution in Python .
dic = {}
dic1 = {}
while(1):
    try:
        query = [str(i) for i in raw_input().split(" ")]
        # print query
        # try:
        if query[0] == "set":
            dic[query[1]] = query[2]
        elif query[0] == "unset":
            dic[query[1]] = "null"
        elif query[0] == "update":
            dic[query[1]] = query[2]
        elif query[0] == "get":
            print dic[query[1]]
        elif query[0] == "count":
            count = 0
            for i in dic:
                if dic[i] == query[1]:
                    count = count + 1
            print count
        elif query[0] == "begin":
            while(query[0]!= "rollback"):
                query = [str(i) for i in raw_input().split(" ")]
                if query[0] == "set":
                    dic1[query[1]] = query[2]
                elif query[0] == "unset":
                    dic1[query[1]] = "null"
                elif query[0] == "update":
                    dic1[query[1]] = query[2]
                elif query[0] == "get":
                    print dic1[query[1]]
                elif query[0] == "count":
                    count = 0
                    for i in dic:
                        if dic[i] == query[1]:
                            count = count + 1
                    print count
    except KeyError:
        print query[1]," is not present"
        pass

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I used stack to solve the above modules.

4 of us completed all the modules and called for technical round on next day.

Round 4: TECH 1 [ around 30 minutes ]

Discussion about current project. Most of the questions are about tech skills you mentioned in the resume.

Be clear with things you added in your resume. If they find you are good enough they will send you to HR else this is the end of the line.

3 of us called for hr round.

Round 5: HR ROUND [ 10 mins ]

Why you are leaving your current job in short span ? [ 1 yr experience ]
Why Zoho?
Where will you stay? [ they expect you to stay within 10-15 km from office as it is mentioned in interview call letter itself]
Discussion about package.

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After 4 days, got call from hr saying “You make it into the team” 🙂 . All 3 are selected in HR round.