1. Using STL stack class, implement in C++the following pseudocode function checkBraces(aString: string) that checks for balanced braces f } in a given string / arithmetic expressions. 2. Write a main() program to test the above function. 3. Submit your Lab4.cpp file and a lab4_report showing results. Sample pseudocode for the Task1: // Checks the string aString to verify that braces match. // Returns true if aString contains matching braces, false otherwise. checkBraces(aString: string): boolean \{ aStack = a new empty stack balancedSoFar = true i=0 // Tracks character position in string while (balancedSoFar and i