所以通过将字母对应的矩阵入栈。当遇到右括号时有唯一匹配,所以可以取出栈顶两个元素运算。 1#include <iostream>2#include <stack>3#include <string>4#include <algorithm>5usingnamespacestd;67structMatrix {8inta, b;9Matrix(inta = 0,intb = 0):a(a),b(b){}1011}m[26];1213stack<Matrix> s;14...
Matrix t1 = dq.back(); dq.pop_back(); if(t1.y != t2.x) { flag = false; break; } ans += t1.x * t1.y * t2.y; dq.push_back(Matrix(t1.x, t2.y)); } else { dq.push_back(Map[str[i]]); } } while(!dq.empty()) { Matrix t1 = dq.front(); dq.pop_front();...
欢迎folk或者star我的repo:https://github.com/guopeiming/algorithm-training,每天更新一道oj入门紫皮书上的题目或者oj、LeetCode,持续更新中 主要就是模拟矩阵的计算过程,注意每一次栈都要清空,否则,上一次残留的东西会影响后一次的计算。 整个的计算过程就类似前、后、中缀表达式的计算过程,很类似计算器,比较简单...
Conventionally, the complexity of matrix-chain multiplication is O(n(3)). After leveraging the facility of outsourcing, the client-side complexity reduces to O(n(2)). In the proposed algorithm, the client employs some efficient linear transformation schemes, which preserve the data confidentiality....
The model Optimal Parenthesization Scheme using 2-Tree Generation (OPS2TG) acts as one relevancies of the proposed algorithm. A new approach for how to break the matrix chain and how to insert parenthesis in it is also designed in this model. The comparison study between the proposed model ...
#include<iostream>#include<deque>#include<algorithm>#include<cstdio>#include<stack>#include<string>#include<vector>#includeusing namespace std; //bool check (vector<string>&v,map<string,int>&m) //{ // for(unsigned int i=1;i<v.size();i++) // if...
The Matrix Multiplication Algorithm in C++ Given two matrices, if either one of them is empty, the multiplication result should be empty as well. The result matrix dimension is the [rowA, colB] and each element in the matrix should be the sum of the dot products for each row in A and ...
A sensing algorithm is developed that reduces the probability of false alarms. Furthermore, a basic simultaneous sensing and reception protocol is developed which significantly reduces sensing overhead and increases system throughput. View article Journal 2023, Internet of ThingsAdeel Iqbal, ... ...
Since logical AND in probability means to multiply and logical OR means to sum, this algorithm can be mathematically expressed as P1⋅P1, being P1 the PTM for LB1. Now consider that the first LB is LB1, and after it acts LB2. In this case it is necessary to consider all the ...
#include<iostream>#include<stack>#include<algorithm>usingnamespacestd; typedeflonglongll;constintmaxn=26+5;structMatrix {inta,b;//Matrix (int a=0,int b=0):a(a),b(b){}Matrix (intc=0,intd=0) { a=c; b=d; } }m[maxn]; ...