Compilare: main.cpp: In function 'void dfs(int)': main.cpp:35:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for(int i = 0; i < G[nod].size(); i++) | ~~^~~~~~~~~~~~~~~ main.cpp:40:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for(int d = 1; d < G[nod].size(); d++) | ~~^~~~~~~~~~~~~~~ main.cpp:42:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | for(int i = 0; i + d < G[nod].size(); i++) | ~~~~~~^~~~~~~~~~~~~~~