AI代码解释 Divide-and-Conquer(P)1.if|P|≤n02.thenreturn(ADHOC(P))3.将P分解为较小的子问题P1,P2,…,Pk4.fori←1to k5.doyi ← Divide-and-Conquer(Pi)△ 递归解决Pi6.T←MERGE(y1,y2,…,yk)△ 合并子问题7.return(T)其中|P|表示问题P的规模;n0为一阈值,表示当
AI代码解释 #include<iostream>#include<cmath>using namespace std;intsign(int x){returnx>0?1:-1;}intdivideConquer(int x,int y,int n){int s=sign(x)*sign(y);// 正负号x=abs(x);y=abs(y);if(x==0||y==0)return0;elseif(n==1)returns*x*y;else{intA=(int)x/pow(10,(int)(n...
Here, we show that it is possible to load an N-dimensional vector with a quantum circuit with polylogarithmic depth and entangled information in ancillary qubits. Results show that we can efficiently load data in quantum devices using a divide-and-conquer strategy to exchange computational time ...
1.分治(Divide-and-Conquer(P))算法设计模式如下: if |P| <=n0 then return(ADHOC(P)) //将P分解为较小的子问题 P1,P2,……,Pk for i<-1 to k do yi <- Divied-and-Conquer(Pi) 递归解决Pi T <- MERGE(y1,y2,……,yk)合并子问题 return(T) 其中|P| 表示问题P的规模,n0为(阈值),表...
Divide-and-conquer algorithms: The divide-and-conquer algorithm is an effective algorithm that works by recursively breaking down a problem into two or more subproblems of the same or related type until these become simple enough to be solved directly and rather easily. ...
Algorithm --分治法 分治法 一、基本概念 分治策略是:对于一个规模为n的问题,若该问题可以容易地解决(比如说规模n较小)则直接解决,否则将其分解为k个规模较小的子问题,这些子问题互相独立且与原问题形式相同,递归地解这些子问题,然后将各子问题的解合并得到原问题的解。这种算法设计策略叫做分治法。 任何一个可...
下面是从算法导论(Introduction to Algorithm Edition 3)上copy下的一小段话,解释的相当清楚。 Recurrences go hand in hand with the divide-and-conquer paradigm, because theygive us a natural way to characterize the running times of divide-and-conquer algorithms.A recurrence is an equation or inequalit...
Designing efficient divide-and-conquer algorithms can be difficult. As in mathematical induction, it is often necessary to generalize the problem to make it amenable to a recursive solution. The correctness of a divide-and-conquer algorithm is usually proved by mathematical induction, and its computa...
We take care that these allocation steps do not cause any unbalanced distribution of work, and that, asymptotically, they do not increase the running time. Variants of our generic algorithm also work for the butterfly network and, by a general simulation, for the class of hypercubic networks,...
转载|【算法】分治法(Divide-and-Conquer Algorithm)经典例子分析,上次给大家带来了分治法的基本介绍和基本思想,今天我们继续来看分治算法的几个经典例子。