Compilare: main.cpp: In function 'int main()': main.cpp:58:14: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::unordered_map<int, std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wformat=] 58 | printf("%d\n", ans.size()); | ~^ ~~~~~~~~~~ | | | | int std::unordered_map<int, std::vector<int> >::size_type {aka long unsigned int} | %ld main.cpp:60:18: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wformat=] 60 | printf("%d ", vAns.second.size()); | ~^ ~~~~~~~~~~~~~~~~~~ | | | | int std::vector<int>::size_type {aka long unsigned int} | %ld