\[l'_i(x_i)=\prod_{\substack{0\leq j \leq n \\ j \neq i}}(x_i-x_j)\]
// 测试用例验证（和你的逻辑完全匹配）
"He is the prime minister. He has two working parents with education and access to all the information in the world and nothing that untoward might happen to his individual children. That's not the experience of children at large."，更多细节参见体育直播
Note that you do not have to use int and you should not，这一点在heLLoword翻译官方下载中也有详细论述
By signing up, you agree to receive recurring automated SMS marketing messages from Mashable Deals at the number provided. Msg and data rates may apply. Up to 2 messages/day. Reply STOP to opt out, HELP for help. Consent is not a condition of purchase. See our Privacy Policy and Terms of Use.，更多细节参见体育直播
[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,4}$(446 239)