传送门 其实有一个显然的性质嘛:对于每个数,其实只要考虑它最右能被换到的位置就好了 然后设\(f[i][j]\)表示已经处理完了前\(i-1\)位,当前还有\(j\)个\(1\)可以自由支配(注意这里说的是当前可以自由支配,不是总共可以自由支配的\(1\)) 代码: #include<cstdio> #include<iostream> #include<algorithm> using namespace std; void read(int &x) { ch…

原题连接https://pta.patest.cn/pta/test/17/exam/4/question/264 Shuffling is a procedure used to randomize a deck of playing cards. Because standard shuffling techniques are seen as weak, and in order to avoid "inside jobs" where employees collaborate…

1. 双向链表 https://github.com/BodhiXing/Data_Structure 2. Shuffling Machine https://pta.patest.cn/pta/test/17/exam/4/question/264 思路: 代码: #include <iostream> using namespace std; #define MAXCARD 54 string int2str(int x) { ]; sprintf(ch,"%d",x…

J. Deck Shuffling Time Limit: 2   Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100187/problem/J Description The world famous scientist Innokentiy continues his innovative experiments with decks of cards. Now he has a deck of n cards and k…

在机器学习领域中,经常会听到“shuffling"这个术语.那么,shuffling到底是什么意思呢. 通常,shuffling指的是在SGD怎样依赖训练数据输入顺序的算法中,将训练数据随机打乱,达到让SGD这样的算法得到与Batch算法类似结果的方法. 如上图所示,如果训练数据按1,2,3,...,10,11的顺序输入,采用sgd训练,得到的模型可能一开始是绿线,然后转为红线.而batch算法得到的模型是在红绿之间的一条直线. 那么,是不是所有的算法shuffling都是有效的呢?答案是否定的…

Shuffling is a procedure used to randomize a deck of playing cards. Because standard shuffling techniques are seen as weak, and in order to avoid "inside jobs" where employees collaborate with gamblers by performing inadequate shuffles, many cas…

题目例如以下: Shuffling is a procedure used to randomize a deck of playing cards. Because standard shuffling techniques are seen as weak, and in order to avoid "inside jobs" where employees collaborate with gamblers by performing inadequate shuffles,…

Shuffling is a procedure used to randomize a deck of playing cards. Because standard shuffling techniques are seen as weak, and in order to avoid "inside jobs" where employees collaborate with gamblers by performing inadequate shuffles, many cas…

1042. Shuffling Machine (20) 时间限制 400 ms 内存限制 65536 kB 代码长度限制 16000 B 判题程序 Standard 作者 CHEN, Yue Shuffling is a procedure used to randomize a deck of playing cards. Because standard shuffling techniques are seen as weak, and in order to avoid "inside…

1042. Shuffling Machine (20) 时间限制 400 ms 内存限制 65536 kB 代码长度限制 16000 B 判题程序 Standard 作者 CHEN, Yue Shuffling is a procedure used to randomize a deck of playing cards. Because standard shuffling techniques are seen as weak, and in order to avoid "inside…