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

摘要： Description Today, the math teacher taught Alice Hui Yang’s triangle. However, the teacher came up with a new one, called Sama’s triangle (some of you 阅读全文

摘要： Description Old Sama is a great and powerful magician in the word. One day, a little girl, Anny, touched Sama’s crystal and broke into his magic 2D sp 阅读全文

摘要： 题目描述 近来A国和B国的矛盾激化，为了预防不测，A国准备修建一条长长的防线，当然修建防线的话，肯定要把需要保护的城市修在防线内部了。可是A国上层现在还犹豫不决，到底该把哪些城市作为保护对象呢？又由于A国的经费有限，所以希望你能帮忙完成如下的一个任务： 给出你所有的A国城市坐标 A国上层经过讨论，考 阅读全文

摘要： 题目描述 给定一些点的坐标，要求求能够覆盖所有点的最小面积的矩形， 输出所求矩形的面积和四个顶点坐标 给定一些点的坐标，要求求能够覆盖所有点的最小面积的矩形， 输出所求矩形的面积和四个顶点坐标 输入 第一行为一个整数n（3<=n<=50000） 从第2至第n+1行每行有两个浮点数，表示一个顶点的x和 阅读全文

摘要： Description Being the only living descendant of his grandfather, Kamran the Believer inherited all of the grandpa's belongings. The most valuable one 阅读全文

摘要： Farmer John has a farm. Betsy, a famous cow, loves running in farmer John's land. The noise she made makes John mad. So he wants to restrict the area 阅读全文