Question

My compiler complains.

#include <iostream>
#include <vector>
using namespace std;

int main(){

        vector<string> vec[2];
        vec[0].push_back("test1");
        vec[0].push_back("test2");

        cout << vec[0][0] << endl;
        vec[0].erase(vec.begin());
        cout << vec[0][1] << endl;

}

What is wrong when I call erase?

Answer 1

vec is an array of vector<string>s. I believe you meant vec[0].begin() like so:

vec[0].erase(vec[0].begin());