res[i] = stack[stack.length - 1]; // 易错点5：用at(-1)兼容性差，优先用stack.length-1
黔西市新仁苗族乡化屋村掩映在青山绿水间，白墙黛瓦的民居依山而建，农家乐里挂起的红灯笼透着浓厚年味，令游客们流连忘返。
到了第二窝，它们明显更放松，不再把棉花全拖进红房子，愿意主动出来探索、跑动。，这一点在旺商聊官方下载中也有详细论述
Launch had been planned for early February, but it was delayed to repair a hydrogen leak and, more recently, to give engineers time to fix a helium pressurization problem in the rocket's upper stage. Launch is now on hold until at least April 1.
。safew官方版本下载是该领域的重要参考
Generating SAT problems。爱思助手下载最新版本是该领域的重要参考
I haven’t profiled how much better bubbletea v2 would be for this game. My intuition is that bubbletea v2 should be almost as bandwidth efficient as my implementation but non-trivially slower.