Compilare: main.cpp: In function 'void dfs(int)': main.cpp:21:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for(int i = 0; i < edge[node].size(); i++){ | ~~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:70:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 70 | for(int j = 0; j < comp[i].size(); j++){ | ~~^~~~~~~~~~~~~~~~ main.cpp:123:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 123 | while(grad[i] != comp[i].size()){ | ~~~~~~~~^~~~~~~~~~~~~~~~~ main.cpp:131:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 131 | for(int j = 0; j < arb[i].size(); j++) | ~~^~~~~~~~~~~~~~~ main.cpp:84:13: warning: unused variable 'newnode' [-Wunused-variable] 84 | int newnode = 0; | ^~~~~~~