Compilare: main.cpp: In function 'void dfs(int, 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 j = 0; j < adj[i].size(); j++) { | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void eliminare_frunze()': main.cpp:39:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(int i = 0; i < frunze.size(); i++){ | ~~^~~~~~~~~~~~~~~ main.cpp:55:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for(int j = 0; j < adj[i].size(); j++){ | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:94:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 94 | for(int j = 0; j < adj[ii].size(); j++){ | ~~^~~~~~~~~~~~~~~~