二分$T$​​​​​​​​和$S$​​​​​​​​第一个不同的位置,即需要对于$s$​​​​​​​​,判定是否存在$T[1,s]=S[1,s]$​​​​​​​​且满足条件的$T$​​​​ (注:这里的条件不包含$T$的字典序最小) 显然$T[1,s]$​​已经确定,记其中第$i$​​种字母出现次数为$a_{i}$​​ 而对于$T(s,n]$​,只有字典序(尽量大)和字符数量的限制,因此若交换两个字符能增大字典序显然不劣,重复交换这样的字符,不难得到最终字符从前往后是不上升的 设其中第$i$​​种…

#import <UIKit/UIKit.h> @interface AppDelegate : UIResponder <UIApplicationDelegate> @property (strong, nonatomic) UIWindow *window; @end #import "AppDelegate.h" #import "RootViewController.h" @interface AppDelegate () @end…

  To save a visual to an image file need to use RenderTargetBitmap, detail is reference to Save and read images in WPF. But sometimes you will find the output image was shifted or left blank. This is because that RenderTargetBitmap render the visual…

Based on my a lot of years of encounter within Taobao, purchase bags must go to the high reputation from the shop, bags store selling the quite best, in addition to favorable rate better than 98% through the shops. Chen is certainly going to end up b…

https://code.google.com/codejam/contest/544101/dashboard#s=p0     Problem In the exciting game of Join-K, red and blue pieces are dropped into an N-by-N table. The table stands up vertically so that pieces drop down to the bottom-most empty slots in…

Bag Problem Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 32768/131072 K (Java/Others) Total Submission(s): 1449 Accepted Submission(s): 405 Problem Description 0/1 bag problem should sound familiar to everybody. Every earth man knows it well…

B. Case of Fake Numbers Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/556/problem/B Description Andrewid the Android is a galaxy-famous detective. He is now investigating a case of frauds who make fake copies of the famou…

Mr. Frog's Problem Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 312    Accepted Submission(s): 219 Problem Description One day, you, a clever boy, feel bored in your math class, and then fall…

Revision History Date Issue Description Author 15/May/2015 1.0 Finish most of the designed function. Only the Windows application is finished. litianpeng.yanwenxiongandyuxuehui 21/May/2015 V1.1 Finish all of the function on windows store and windowsp…

Problem D. Grumpy Cat 题目连接: http://www.codeforces.com/gym/100253 Description This problem is a little bit unusual. Here you are to implement an interaction with a testing system. That means that you can make queries and get responses in the online mo…