Company: Grofers, DE-Shaw, CouponDunia, Amazon, Adobe, Accolite, Snapdeal, Oracle, Kritical Solutions Question: Implement a Stack using 2 queue q1 and q2 . Input : The first line of the input contains an integer ' T ' denoting the number of test cases. Then T test cases follow. First line of each test case contains an integer Q denoting the number of queries . A Query Q is of 2 Types (i) 1 x (a query of this type means pushing 'x' into the stack) (ii) 2 (a query of this type means to pop element from stack and print the poped element) The second line of each test case contains Q queries seperated by space. Output: The output for each test case will be space separated integers having -1 if the stack is empty else the element poped out from the stack . You are required to...