Compilare: main.cpp: In function 'int main()': main.cpp:41:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for ( i = 0; i < g[x].size (); i++ ){ | ~~^~~~~~~~~~~~~~ main.cpp:57:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | for ( i = 0; i < g[x].size (); i++ ){ | ~~^~~~~~~~~~~~~~