This story gives some problems related to strings and solutions.
This problem can be easily solved using stringstream data type in C++. stringstream is a class that associates the string object with a stream. This can be used for string manipulations, parsing, and formatting. This class consists of clear() method for clearing, str() method for setting a string, operator << which adds a string to the stringstream object, operator >> which reads from the object.
The above problem can be solved using stringstream data type:
Simple solution for it is:
This solution utilizes an array of counts where the index represents each character. It involves incrementing the count of each character for one string and decrementing the count for another. Then, it checks if all the counts are non-zero.
This solution uses a backtracking approach.
Backtracking is a recursive programming technique to solve problems incrementally and remove solutions that fail to satisfy the constraints of the problem.
Backtracking is used to explore all possible solutions.
Below are the simple steps of how backtracking works:
- Start solving the problem with a possible move.
- If the move chosen does not lead to a solution, backtrack and choose another path.
- Continue this process until either solution is found or have explored all possible moves.
This solution uses a recursive approach to add open parenthesis and then add closed parenthesis until the string size is 2*n:
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