Compilare: main.cpp: In function 'void dfs(int)': main.cpp:24:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for(int i = 0; i < graph[node].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:101:33: warning: format '%d' expects argument of type 'int', but argument 3 has type 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wformat=] 101 | fprintf(fout, "%d ", v.size()); | ~^ ~~~~~~~~ | | | | int std::vector<int>::size_type {aka long unsigned int} | %ld