* @param arr 待排序数组
The Department of Defense and Anthropic hit an impasse with neither side backing down as a deadline for an agreement lapsed on Friday afternoon. The Pentagon had demanded the artificial intelligence company loosen ethical guidelines on its AI systems or face severe consequences.，详情可参考旺商聊官方下载
Rock singer Yungblud is taking his music festival BludFest abroad, but the move has split fans.，更多细节参见旺商聊官方下载
其中 λ≈1.05，α≈1.67。