Compilare: main.cpp: In function 'void dfs(int)': main.cpp:18:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<ura>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 18 | for(int i=0;i<lista[nod].size();i++){ | ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:64:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<ura>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 64 | for(int j=0;j<lista[ul].size();j++){ | ~^~~~~~~~~~~~~~~~~