Insanely difficult vector weird error pizza

Code:

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#include <iostream>
#include <vector>
using std::cout;
using std::vector;

int main() {
        vector <int> _v1;
        vector <int> _v2;

        _v1.push_back(3);
        _v1.push_back(10);
        _v1.push_back(33);

        for(int x=0; x<_v1.size(); x++) {
                cout<< _v1[x] << " ";
        }

        if(!_v1.empty()) {
                _v1.clear();
        }

        _v2.push_back(10);
        _v1.push_back(10);
        if(_v1 == _v2) {
                _v1.push_back(20);
        }

        _v1.switch(1, 2);                // <---- DARN ERORS!!  GGRRAAHH!!
        for(int y=0; y<_v1.size(); y++) {
                cout << _v1[y] << " ";
        }
        return 0;
}

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I keep getting this error:

Code:

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kleid@Shiva:~/Programming/Laboratory$ g++ vectors.cpp
vectors.cpp: In function `int main()':
vectors.cpp:28: error: parse error before `switch'

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Rename your function - switch is a reserved word in C++. Perhaps something like, "swap"?

Mistype! It happens to me all of the time!

http://www.cprogramming.com/tutorial/stl/vector.html