Compilare: main.cpp: In function 'int main()': main.cpp:52:44: warning: format '%d' expects argument of type 'int', but argument 3 has type 'std::vector<int>::size_type {aka long unsigned int}' [-Wformat=] printf("%d\n%d\n", cost, res.size() - 1); ^ main.cpp:54:44: warning: format '%d' expects argument of type 'int', but argument 2 has type 'size_t {aka long unsigned int}' [-Wformat=] printf("%d %d\n", i + 1, res[i] + 1); ^