Problem when posting source code

Hi,

When I try to add a source code to my post like the following piece of code, It doesn’t work and

[code language="cpp"]
#include <iostream>
#include <string>
#include <fstream>
#include <vector>
#include <sstream>
using namespace std;
struct FileRead{
void readFromFile();
vector<vector<string>> person;
};
[/code]

It views the code like that:

https://www.dropbox.com/s/mun1rcgtfqhlzcj/wordpress.png?dl=0

How can I solve this issue?

Thank you.