View Compilation Error

0_0_1873476_8575.cpp: In function `int main()':
0_0_1873476_8575.cpp:20: error: base operand of `->' has non-pointer type `std::map<std::string, int, std::less<std::string>, std::allocator<std::pair<const std::string, int> > >'
0_0_1873476_8575.cpp:22: error: base operand of `->' has non-pointer type `std::map<std::string, int, std::less<std::string>, std::allocator<std::pair<const std::string, int> > >'