Compilare: main.cpp: In function 'int main()': main.cpp:30:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(int i = 0; i < adj[1].size(); i++){ | ~~^~~~~~~~~~~~~~~ main.cpp:38:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | for(int i = 0; i < adj[curr_dist.second].size(); i++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~