SDE - 1

You are given two strings 'str1' and 'str1'.

You have to tell whether these strings form an anagram pair or not.

The strings form an anagram pair if the letters of one string can be rearranged to form another string.

Pre-requisites:

Anagrams are defined as words or names that can be formed by rearranging the letters of another word. Such as "spar" can be formed by rearranging letters of "rasp". Hence, "spar" and "rasp" are anagrams. 

Other examples include:

'triangle' and 'integral'
'listen' and 'silent'

Note:

Since it is a binary problem, there is no partial marking. Marks will only be awarded if you get all the test cases correct. 

You are given a string S which represents a number. You have to find the smallest number strictly greater than the given number which contains the same set of digits as of the original number i.e the frequency of each digit from 0 to 9 should be exactly the same as in the original number.

For example:

If the given string is 56789, then the next greater number is 56798. Note that although 56790 is also greater than the given number it contains 1 '0' which is not in the original number and also it does not contain the digit '8'.

Note:

The given string is non-empty.

If the answer does not exist, then return -1.

The given number does not contain any leading zeros.

You have a robot currently standing at the origin (0, 0) of a two-dimensional grid and facing north direction. You are given a sequence of moves for the robot in the form of a string of size 'N'. You are required to find whether the path followed by the robot upon taking the moves is circular or not.

A sequence of moves is circular if and only if the robot ends up from where it initially started.

The sequence of moves contains only three types of moves.

'G': it means that the robot will move 1 unit in the direction it is facing.

'L': it means that the robot will move 90 degrees towards its left. For example, if the robot is facing north and it has to make an ‘L’ move, then it will start facing the west direction.

'R': it means the robot will move 90 degrees towards its right. For example, if the robot is facing north and it has to make an ‘R’ move then it will start facing the east direction.

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