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#include <iostream>
#include <cstdlib>
#include <string>
#include <vector>
template <typename T>
class Myclass {
	std::vector<T> s(10);
	public:
		T& operator[](int i) {
			if(i<0 || i>9)
			{
				std::cout<<"Index value is out of bounds\n";
				std::exit(1);
			}
			return s[i];
		}
};
int main(){
	Myclass<std::string> s;
	s[0]="Shreya";
	s[1]="Meet";
	s[2]="Pia";
 
	for(int i=0;i<3;i++)
		std::cout<<s[i]<<' ';
}

prog.cpp:7:19: error: expected identifier before numeric constant
  std::vector<T> s(10);
                   ^
prog.cpp:7:19: error: expected ',' or '...' before numeric constant
prog.cpp: In instantiation of 'T& Myclass<T>::operator[](int) [with T = std::basic_string<char>]':
prog.cpp:20:5:   required from here
prog.cpp:15:12: error: invalid use of member function (did you forget the '()' ?)
    return s[i];
            ^

Standard output is empty