Eroare de compilare: user.cpp: In function ‘void rot(std::vector<std::vector<int> >&)’: user.cpp:19:9: error: ‘i’ was not declared in this scope for(i=1; i<=n; i++) ^ user.cpp:20:25: error: ‘j’ was not declared in this scope for(j=1; j<=n; j++) ^ user.cpp: In function ‘bool key(std::vector<std::vector<int> >, std::vector<std::vector<int> >)’: user.cpp:26:10: error: ‘i’ was not declared in this scope for (i = 0; i < n; ++i) { ^ user.cpp: In function ‘int main()’: user.cpp:45:25: error: too few arguments to function ‘bool key(std::vector<std::vector<int> >, std::vector<std::vector<int> >)’ cout << key(cart) << "\n"; ^ user.cpp:25:6: note: declared here bool key(vector < vector < int > > card, vector < vector < int > > cor) { ^