SDE - 1

On a 26-question test, five points were deducted for each wrong answer and eight points were added for each correct answer. If all the questions were answered, how many were correct if the score was zero?

1) 10

2) 11

3) 12

4) 13

You are given an integer ‘N’. You have to print the value of Factorial of ‘N’. The Factorial of a number ‘N’ is defined as the product of all numbers from 1 to ‘N’.

For Example:

Consider if ‘N’ = 4, the Factorial of 4 will be the product of all numbers from 1 to 4, which is 1 * 2 * 3 * 4 = 24. Hence, the answer is 24.

There is a jar full of candies for sale at a mall counter. Jar has the capacity ‘N’. That is, jar can contain maximum ‘N’ candies when a jar is full. At any point in time jar can not have 0 or fewer candies.

Given the number ‘K’, the number of candies the customer wants. Your task is to return the candies left in the jar.

Note:

If 'K' is greater than 'N', return -1 denoting the invalid order.

For example:

Given if 'N' = 10, 'K' = 5. Then 5 candies are left in the jar after the event.

What is the term given to the variable whose scope is beyond all the scopes i.e., it can be accessed by all the scopes?
a. universal variable
b. global variable
c. external variable
d. auto variable

What is database? 
Explain joins.
Explain all types of normalisation.
What is deadlock how can we over come from that.
What are transaction. Types.
Explain about locks.
What is grouping?
Gave 2 queries to write one is normal another nested.

Data structures: 
What is ds. Explain types.
Tell me about sorting techniques.
What is avl tree. Traversal of tree.
Some tree algorithms like dfs,bfs.
About max and min heap.

Python:
How python will store memory.
As in java we have garbage collector what we have in python?
Told me to write code for Fibonacci series.
Recursion in python
Python data structures and data types.
How will you connect dbms to python/java

How do you feel about working weekends and night shifts?

Where do you see yourself in 5 years?