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From http://blog.csdn.net/shuangde800 Question link: Click the open link Theme To a string, you must add at least characters, convert it into a return string, and output it. Ideas Simple interval DP, F (I, j) indicates the minimum number

From http://blog.csdn.net/shuangde800 Click to open the link Question Set 1 ~ N is arranged in a circle in a counter-clockwise order. No K numbers are deleted from 1, and all numbers are deleted. Calculate the number of three deleted objects.

From http://blog.csdn.net/shuangde800 Question: Click to open the linkTheme For example, this is a dance machine. In the initial state, both the feet are 0 and the status is (0, 0). Then, the dance opportunity gives you a series of dance

From http://blog.csdn.net/shuangde800 Question Link: Click to open the linkTheme Specify a tree and select as few nodes as possible, so that each unselected node is at least adjacent to one selected node. Ideas The classic tree-like DP is said

Link: Http://acm.hdu.edu.cn/showproblem.php? PID = 1, 2923 Question: Einbahnstrasse Time Limit: 2000/1000 MS (Java/others) memory limit: 32768/32768 K (Java/Others)Total submission (s): 1117 accepted submission (s): 316 Problem

Click to open the link Question: For a string with a maximum length of 10000, ask how many response substrings it has (no need to be consecutive ). If the substring is taken from different locations but identical, it is also different.

From http://blog.csdn.net/shuangde800 Note: In the design mode, the so-called "Implementing an interface" does not necessarily mean "writing a class and using the implements keyword to implement a Java interface". it refers to a method that

Link: Http://acm.hdu.edu.cn/showproblem.php? PID = 1, 1224 Question: Free DIY tour Time Limit: 2000/1000 MS (Java/others) memory limit: 65536/32768 K (Java/Others)Total submission (s): 1894 accepted submission (s): 619Problem descriptionweiwei is a

Link: Http://acm.hdu.edu.cn/showproblem.php? PID = 1, 2962 Question: Trucking Time Limit: 20000/10000 MS (Java/others) memory limit: 32768/32768 K (Java/Others)Total submission (s): 1211 accepted submission (s): 428Problem descriptiona certain

Link: Http://acm.hdu.edu.cn/showproblem.php? PID = 1, 2363 Question: James walked from home to school to take the test. There were all intersections on the road, and they had their own altitude. James's journey from home to school will inevitably

Link: Http://poj.org/problem? Id = 1639 Question: Picnic Planning Time limit:5000 Ms   Memory limit:10000 K Total submissions:7780   Accepted:2726 DescriptionThe contortion brothers are a famous set of circus

Link: Http://acm.hdu.edu.cn/showproblem.php? PID = 1, 1251   QuestionProblem descriptionignatius recently encountered a problem. The teacher gave him many words (only lowercase letters are used and no duplicate words will appear ), the teacher asks

Link: Http://acm.zju.edu.cn/onlinejudge/showProblem.do? Problemcode = 3261. Question: Connections in Galaxy war Time Limit: 3 seconds memory limit: 32768 KB In order to strengthen the defense ability, starting stars in Galaxy allied

Link: Http://acm.hdu.edu.cn/showproblem.php? PID = 1, 2121 Question: Ice_cream's World II Time Limit: 3000/1000 MS (Java/others) memory limit: 32768/32768 K (Java/Others)Total submission (s): 1610 accepted submission (s): 354Problem

Link: Http://acm.hdu.edu.cn/showproblem.php? PID = 1, 3339 Question: Problem description Since 1945, when the first nuclear bomb was exploded by the Manhattan Project Team in the US, the number of nuclear weapons have soared into ss the

Link: Http://acm.hdu.edu.cn/showproblem.php? PID = 1, 2846 Question: Repository Time Limit: 2000/1000 MS (Java/others) memory limit: 65536/65536 K (Java/Others)Total submission (s): 1657 accepted submission (s): 605Problem descriptionwhen you go

The algorithm is broad and profound. When can I come up with such a good solution ???!!! # Include # include # include using namespace STD; int num [500001]; int main () {// freopen ("in.txt ", "r", stdin); int n, a, B; while (scanf ("% d", & N )

From http://blog.csdn.net/shuangde800 Question link: Click the open link Theme At first, there is a number a0, and then a total of N numbers A1, a2.. an are given. Each number of these N numbers has an operator, &, |, ^ And the probability of

From http://blog.csdn.net/shuangde800 Question link: Click the open link Poj does not have a question description. The question PDF Link Question A tree composed of N city nodes. the power loss from node I to node J is I * r * (number of edges

From http://blog.csdn.net/shuangde800 Start exercise beginner in the dynamic planning part of "getting started with algorithm competitions classic-Training Guide" There are a total of 25 questions in this topic, and the feeling of DP has improved