摘要：AdaBoost资料：https://www.cnblogs.com/ScorpioLu/p/8296561.html GBDT学习资料：https://blog.csdn.net/qq_22238533/article/details/79185969 阅读全文

摘要：Description Every cow's dream is to become the most popular cow in the herd. In a herd of N (1 <= N <= 10,000) cows, you are given up to M (1 <= M <= 阅读全文

摘要：Description Give you a number S of length n,you can choose a position and remove the number on it.After that,you will get a new number. More formally, 阅读全文

摘要：Description Cyy likes something symmetrical, and Han Move likes something circular. Han Move gave you a circular string whose length is N, i.e. the i- 阅读全文