SDE - 1

You are given a string 'STR' of lowercase English alphabets. You need to find the repeated character present first in the string.

Example:

If the string is: “abccba”, then the first repeated character is ‘c’, but the repeated character that is present first in the string is ‘a’. You need to print ‘a’.

Note:

Keep in mind that you need to print the repeated character that is present first in the string and not the first repeating character.

Given a string ‘S’ and an integer ‘ p ’. You need to find if you can make ‘ p ’ number of non-empty palindromic strings by using all the characters of string ‘ S ’. Note that you can use a character only once and if there are more than once occurrence of that character you can use it that many times only.

For Example :

If the given string is “ninjas” and p = 4 then we can make 4 palindromic strings as “nin” + “j” + “a” + “s”.

• What are the specialties of NodeJS.
• What is the difference between HTTP and HTTPS?
• What is the difference between SQL and NoSQL?
• What is Race Condition?
• What are four criteria for Deadlock to happen?
• What is LRU policy?

You are given a string 'S'. Your task is to reverse the vowels in the string while keeping the consonants unchanged.

Note:

The alphabets 'a', 'e', 'i', 'o', and 'u' are vowels, while all the remaining alphabets are consonants.

You have been given an encoded string. Your task is to decode it back to the original string.

- An encoded string will be of the form <count>[encoded_string], where the 'encoded_string' inside the square brackets is being repeated exactly 'count' times. Note that 'count' is guaranteed to be a positive integer and can be greater than 9.
- There are no extra white spaces and square brackets are well-formed.

For example -

Input: 2[a]
“a” is encoded 2 times, hence the decoded string will be "aa".

Input: 3[a2[b]]
“b” is encoded 2 times, which decodes as 3[abb]. Now, "abb" is encoded 3 times, hence decoded string will be "abbabbabb". 

Design a Job scheduler. There is a POST API through which we will be receiving a Job id and a timestamp. We need to push this job id to some queue at the given timestamp.