Compilare: main.cpp: In function 'void DFS1(int)': main.cpp:15:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 15 | for(int i=0;i<inv_graph[node].size();i++) | ~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void DFS2(int)': main.cpp:24:18: 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++) | ~^~~~~~~~~~~~~~~~~~~