Data Analyst

Ninja has recently joined the FBI. Ninja got some secret information ‘SECRET_INFORMATION’ which he wants to share with his team. But he can not send this information directly because of the hackers and security threats they pose.

So Ninja decides to encode this ‘SECRET_INFORMATION’ and then send the encoded ‘SECRET_INFORMATION’ to his team members. This way, only his team members can decode this information and thus share it safely.

As Ninja is busy extracting the ‘SECRET_INFORMATION, he asks you for help.

Can you help Ninja and his friends with encoding and decoding the ‘SECRET_INFORMATION’?

Note:

1. The ‘SECRET_INFORMATION’ may contain any possible character out of 256 valid ASCII characters.
2. While decoding the ‘SECRET_INFORMATION’ do not use class members / global/static variables.
3. Do not use any inbuilt library method/function for decoding the ‘SECRET_INFORMATION’.

SQL join to your database query

What is polymorphism

You are given an array Arr consisting of N integers. You need to find the equilibrium index of the array.

An index is considered as an equilibrium index if the sum of elements of the array to the left of that index is equal to the sum of elements to the right of it.

Note:

1. The array follows 0-based indexing, so you need to return the 0-based index of the element.
2. Note that the element at the equilibrium index won’t be considered for either left sum or right sum.
3. If there are multiple indices which satisfy the given condition, then return the left-most index i.e if there are indices i,j,k…. which are equilibrium indices, return the minimum among them
4. If no such index is present in the array, return -1.

Tell me about yourself.

Why should we hire you?

What keeps you motivated?