Commonly used indicators and statistical methods. Specifically: Tree depth and subtree size DFS sequence of the graph Topological order of graph Connectivity components of the graph The content of the next section will be first published in "91 Tianxue Algorithm". Those who want to participate can...
class Solution{public:string gcdOfStrings(string str1,string str2){if(str1==str2){returnstr1;}if((str1.find(str2)==string::npos)&&(str2.find(str1)==string::npos)){return"";}if(str1.size()>str2.size()){str1=str1.substr(str2.size());}if(str2.size()>str1.size()){str...
For example, we define a recursive function f(n), and use f(n) to describe the problem. It is the same as using ordinary dynamic programming f[n] to describe the problem, where f is an array of dp. What is memoization? In order for everyone to better understand the content of this...
This is the approach of an adversary which wants to be exclusively able to decrypt the ciphertext before the deadline. Note that in this case the adversary would have to compute all missing blocks to decrypt a ciphertext on its own. If the target bound function \(\delta \) is chosen ...
CF has a large number of participants in each round. If 5% of participants think that his/her time is more important than ours then we will have to answer 5-10 questions every minute. In this round we had 30-40 unanswered questions during an hour, waiting time to get answer to your ...
The parabolic–elliptic version of the logistic Keller–Segel system given by $$\begin{aligned} \left\{ \begin{array}{lcll} u_t &{}=&
Additional Array Topics to Explore Rotation of Array:Shifting elements in a circular manner, such as right circular shift where the last element becomes the first. Rearranging an array:Changing the initial order of elements based on specific conditions or operations. ...
0033 Search in Rotated Sorted Array Go 34.5% Medium 0034 Find First and Last Position of Element in Sorted Array Go 36.1% Medium 0035 Search Insert Position Go 42.6% Easy 0036 Valid Sudoku Go 48.7% Medium 0037 Sudoku Solver Go 43.5% Hard 0038 Count and Say 44.6% Easy 0039 Combi...