Compilare: main.cpp: In function 'void dfs(int)': main.cpp:19:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | for(int i = 0; i < G[nod].size(); i++) | ~~^~~~~~~~~~~~~~~ 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 d = 1; d < G[nod].size(); d++) | ~~^~~~~~~~~~~~~~~ main.cpp:26:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | for(int i = 0; i < G[nod].size() - d; i++) | ~~^~~~~~~~~~~~~~~~~~~ main.cpp:33:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | for(int i = 0; i < G[nod].size(); i++) | ~~^~~~~~~~~~~~~~~ main.cpp:38:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | for(int d = 1; d < G[nod].size(); d++) | ~~^~~~~~~~~~~~~~~ main.cpp:40:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for(int i = 0; i < G[nod].size() - d; i++) | ~~^~~~~~~~~~~~~~~~~~~