A. Flipping Game time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Iahub got bored, so he invented a game to be played on paper. He writes n integers a1, a2, ..., an. Each of those intege
题目描述 Bessie and the cows were playing games in the barn, but the power was reset and the lights were all turned off. Help the cows get all the lights back on so they can resume their games. The N (1 <= N <= 35) lights conveniently numbered 1..N and