Assistant System Engineer

You are given a positive integer 'N' representing the number of teams playing in a tournament. Your task is to find the total number of matches played in the tournament if the condition for the tournament is as follows:

1. If the current number of teams(N) playing in the tournament is even then, a total of N / 2 matches will be played. The winning N / 2 teams will advance to the next round, and the losing N / 2 teams will be eliminated.

2. If the current number of teams(N) playing in the tournament is odd then, 1 team will be advanced to the next round directly, and a total of (N - 1) / 2 matches will be played. The winning (N - 1) / 2 teams will advance to the next round, and the losing (N - 1) / 2 teams will be eliminated.

Ninja started a gaming shop and for that shop, he is planning to make a new game ‘String Ka Khel’. In that game user is provided with ‘N’ number of strings and he has to find out the maximum length of strings he can form by joining these ‘N’ strings. For joining two strings there is a condition that two strings will only join if the last character of the first string is same as the last character of the second string. If the user will find out the correct answer he will be given Coding Ninja goodies by the Ninja.

So your task is to find the maximum length of string which can be formed by joining strings according to the given condition. If no such combination exists return ‘0’. Strings only contain the letter ‘B’ and ‘R’.

Example:

The string is ‘RR’, ‘RB’ so we can combine ‘RR’ and ‘RB’ as the last character of ‘RR’ i.e ‘R’ matches with the first character of ‘RB’. But we cant combine ‘RB’ and ‘RR’ as the last character of ‘RB’ i.e ‘B’ doesn't matches with the first character of ‘RR’ i.e ‘R’ so our answer is '4'.

You are given a string 'STR'. The string contains [a-z] [A-Z] [0-9] [special characters]. You have to find the reverse of the string.

For example:

 If the given string is: STR = "abcde". You have to print the string "edcba".

follow up:

Try to solve the problem in O(1) space complexity. 

Write a SQL query to get the details of employees who is working in purchase department and having salary more than 10000 per month .

What is Acid properties?

Explain primary key .

What are the minimum steps for which you can cut a piece of cake into 8 pieces

Are you able to relocate?
Are you able to work in rotational shifts?
Tell me about TCS achievements during last 6 months.
Are you comfortable to work in support projects?
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