In this **HackerRank Operator Overloading problem in c++,** You are given a main() function that takes a set of inputs to create two matrices and prints the result of their addiction. You need to write the class Matrix which has a member an of type vector<vector<int> >. You also need to write a member function to overload the operator +. The function's job will be to add two objects of Matrix-type and return the resultant Matrix.

## HackerRank Operator Overloading in C++ problem solution

class Matrix { public: Matrix(){} vector< vector<int> > a; }; Matrix operator+(Matrix& a,Matrix b) { Matrix c; c.a.resize(a.a.size()); for(int i=0;i<c.a.size();i++) { c.a[i].resize(a.a[i].size()); } for(int i=0;i<a.a.size();i++) { for(int j=0;j<a.a[i].size();j++) { c.a[i][j]=a.a[i][j]+b.a[i][j]; } } return c; }

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