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#include <iostream>
#include <vector>
#include <list>
 
template<typename T>
class MyVectorCollection
{
    using collection = std::vector<T>;
};
 
template<typename C, typename T>
class MyGenericCollection
{
    using collection = C;
};
 
template<typename C, typename T>
class MyMoreGenericCollection
{
    using collection = C<T>;
};
 
int main() {
    // your code goes here
    MyVectorCollection<int> a;
    MyGenericCollection<std::list<int>, int> b;
    MyMoreGenericCollection<std::list, int> c;
    return 0;
}

prog.cpp:20:24: error: ‘C’ is not a template
     using collection = C<T>;
                        ^
prog.cpp: In function ‘int main()’:
prog.cpp:27:43: error: type/value mismatch at argument 1 in template parameter list for ‘template<class C, class T> class MyMoreGenericCollection’
     MyMoreGenericCollection<std::list, int> c;
                                           ^
prog.cpp:27:43: note:   expected a type, got ‘list’

Standard output is empty