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89860 篇文章 33 次评论PROGRAMMING:cross the river
There is a river in which there are n stones. Now you can only walk from one side of the river to the other side. You ca…
PROGRAMMING:Black 13
The number of $$13 ~ ~ makes people feel very uncomfortable ~ ~ it's an unusual day.Now you can calculate the number of…
PROGRAMMING:Decomposition of large numbers
Suppose you now have a positive integer $$n $$.Each composite number can be written in the form of multiplication of sev…
PROGRAMMING:Max stream plus
This is a template question.Given $$n $$points, $$M $$edges, given the capacity of each edge, find the maximum flow from…
PROGRAMMING:Merging Linked Lists
Given two singly linked lists $$L_ 1 = a_ 1 \to a_ 2\to \cdots \to a_{ n-1}\to a_ n$$ and $$L_ 2 = b_ 1 \to b_ 2\to \cdo…
PROGRAMMING:Lonely number
"This problem will come out in the time of changing women's clothes."Zup gives you 2n + 2 numbers each time. Except for…
PROGRAMMING:Count the value of TF-IDF
TF-IDF (term frequency inverse document frequency) is a statistical method in natural language processing, which is used…
PROGRAMMING:The Water Problem
In Land waterless, water is a very limited resource. People always fightfor the biggest source of water. Given a sequenc…
PROGRAMMING:K-th minimum
You have an array: $$a_ 1,a_ 2,a_ 3,......,a_ For this array, you have to answer some questions.For each query, you will…
PROGRAMMING:Card drawing game
The inspiration of this problem comes from a classical probability model.There are $$x $$s $$cards and $$y $$a $$cards i…