Compilare: main.cpp: In function 'void print()': main.cpp:31:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for (int i = 0; i < edges.size(); i++) | ~~^~~~~~~~~~~~~~ main.cpp:34:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for (int j = 0; j < edges[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:86:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 86 | for (int i = 0; i < edges.size(); i++) | ~~^~~~~~~~~~~~~~