Can I use ' == ' to compare two vectors. I tried it and seems to be working fine. But I don't know whether it will work in more complex situations

Question

First example:

int main(){
    using namespace std;   
    vector v1{10, 20, 30, 40, 50};
    vector v2{10, 20, 30, 40, 50};

    if(v1==v2         


        

Answer 1

Yes. A good reference is cppreference.com, where you can look up operator== for vector, for example on this page: non-member operators, and you will find:

Checks if the contents of lhs and rhs are equal, that is, whether lhs.size() == rhs.size() and each element in lhs has equivalent element in rhs at the same position.