Please help me answer this simple coding question for an online judge platform. You can write the code in either Python3 or Java8 ; whichever one is easier and faster. Please also provide screenshots of your output after entering the inputs; it should match the sample inputs and outputs in the question. Thank You!

I had posted this before, but got a completely wrong answer. Please provide the correct code that gives the correct output.

Due to budget cuts, even spies have to use commercial airlines nowadays to travel between cities in the world. Although this mode of travel can be very convenient for a spy, it also raises a problem: the spy has to trust the pilot to make sure he is not in danger during the flight. And even worse, sometimes there is no direct flight between some pairs of cities, so that the spy has to take multiple flights to get to the desired location, and thus has to trust multiple pilots! To limit the trust issues you are asked for help. Given the flight schedule, figure out the smallest set of pilots that need to be trusted, such that the spy can safely travel between all cities Input On the first line one positive number: the number of test cases, at most 100. After that per test case: one line with two space-separated integers n (2 <>