Jio Platforms Sde1 Interview Questions and Answers

There are 2 coding questions
1st one was so easy, anyone who practiced coding,dsa for 1 month can also solve it.
2nd one is a difficult qn based on dp, Its not an standard dp problem, for most of them 2nd qn is difficult which is either dp or graph.

Q1. Explain me about your internship and projects your are mentioned in your resume.
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Q2. Qn was easy only, the way he explained that dsa qn was so bad, it took 30 mins for me extract the exact meaning of qn from him. IN OOPS he asked, What is singelton class? Write code for it.
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Q1. DSA qn: Given a string find a first repeating character. Eg: String is "abcbca" , ans > "a"
Ans. 
Given a string, find the first repeating character.
• Use a hash table to keep track of characters and their frequency.

• Iterate through the string and check if the character is already in the hash table.

• Return the first character with a frequency greater than 1.
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Q2. SQL qn: standard qn, find the 2nd highest salary Find the nth highest salary from table employee
Ans. 
SQL query to find nth highest salary from employee table
• Use ORDER BY and LIMIT clauses

• For 2nd highest salary use LIMIT 1,1

• For nth highest salary use LIMIT n-1,1
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Q3. And some qns about my projects.
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Q1. He asked me to go through my resume completely and asked me about my family deatails.
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Dsa questions were asked

Q1. Oops and dsa questions
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BASIC APPTITUDE AND CODING QUESTIONS

Q1. ABOUT YOURSELF,PROJECT ,BASIC CODING QUESTIONS
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