System Engineer

You are given an infinite array consisting of only ones and zeroes, in sorted order. You have to find the index of the first occurrence of 1.

Example:

If the array is 0 0 0 0 1 1 1 1… then, the first occurrence of 1 will be at index 4 therefore the answer here is 4.

Note:

As the array size is infinite, the actual array won’t be given to you. Instead, you will be able to access the array elements by calling a method named ‘get’.

get(i) : returns the value present at index I.

Indexing is 0-based. 

Instead of representing an infinite array in the input, we give the index of the first occurrence of 1 in the input itself. However, this input will be completely hidden from the user.

It is guaranteed that the answer will fit in a 64-bit integer.

Given an integer ‘N’ representing the number of pairs of parentheses, Find all the possible combinations of balanced parentheses with the given number of pairs of parentheses.

Note :

Conditions for valid parentheses:
1. All open brackets must be closed by the closing brackets.

2. Open brackets must be closed in the correct order.

For Example :

()()()() is a valid parentheses.
)()()( is not a valid parentheses.

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