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  2. C++
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  4. Operator Overloading
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Operator Overloading

  • lesontuanvp
     + 1 comment

    Could someone tell me what wrong with the below code:

    #include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;
class Matrix {
    private:
    vector<vector<int>> A1;
    public: 
    Matrix(int N,int M){
    A1.resize(N,vector<int>(M));
    //vector<vector<int>> A1(N,vector<int>(M)),A2(N,vector<int>(M));
    for (int i=0;i<N;i++){
        for (int j=0;j<M;j++){
            cin>> A1[i][j];
        }
    }
 
    }
    Matrix operator+ (Matrix const &obj){
        int N=A1.size();
        int M=A1[0].size();
        Matrix res(N,M);
    //vector<vector<int>> res(N,vector<int>(M));
    for (int i=0;i<N;i++){
        for (int j=0;j<M;j++){
            
            res.A1[i][j]=A1[i][j]+obj.A1[i][j];
            cout<<res.A1[i][j]<<" ";
        }
        cout<<endl;
    }
    return res;
    }
};

int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */ 
    int T,N,M;
    cin>>T;
    cin>>N>>M;
    
    Matrix A1(N,M);
    Matrix A2(N,M);
    Matrix res=A1 + A2;
return 0;
}