First line of input contains T - number of test cases. Its followed by 2T lines, the first line contains N - the size of the array and second line contains the elements of the array. For each test ...

In 2011, Boeing announced it was going to update its fleet of 737s, the bestselling commercial jetliner in history. The company’s archrival, Airbus, released a version of its popular twin-engine A320 ...