loving coding

**Here is a famous story in Chinese history.“That was about 2300 years ago. General Tian Ji was a high official in the country Qi. He likes to play horse racing with the king and others.”“Both of Tian

**Given a set of sticks of various lengths, is it possible to join them end-to-end to form a square? The first line of input contains N, the number of test cases. Each test case begins with an integer

***After a long night of coding, Charles Pearson Peterson is having trouble sleeping. This is not only because he is still thinking about the problem he is working on but also due to drinking too much