Programmer Group

ac automata is an algorithm used to calculate multiple string matches. As we know, K M P KMP KMP realizes the matching of single-mode strings in an ingenious way (using a single string to ask whether the string appears ...

catalogue 1. Distribution issues 2. Interval problem 3. The best time to buy stocks 4. Summary 1. Distribution issues Title Description: This kind of problem probably means that there are a group of children and a pile of biscuits. Each child is very hungry. If the size of the biscuit is greater than or equal to the child's hunger, ...

A basic union search set There are only two operations for the basic union query set, one is to find ancestors, and the other is to merge int find(int x) { if(x==pre[x]) return x; else return pre[x]=find(pre[x]); } void join(int x,int y) { pre[find(x)]=find(y); } Two weighted union search set   for weighted concurrent sear ...

Binary Title Description You are an algorithm enthusiast, trying to learn computer knowledge. You know, the most beautiful part of the computer is binary, which you have a deep experience in shape pressure plus o. of course, binary is also very clever when used in co and o, not to mention that nini games can be related to xor. T oday, you ...

Powered by:NEFU AB_IN Tree chain subdivision introduce Divide "tree" into "chain" Pre knowledge Segment treeTreelike d f s dfs dfs or ...