Compilare: main.cpp: In function 'int main()': main.cpp:29:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for(int j=0;j<G[i].size();j++){ | ~^~~~~~~~~~~~ main.cpp:30:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(int k=j+1;k<G[i].size();k++){ | ~^~~~~~~~~~~~ main.cpp:43:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 43 | for(int j=1;j<sol[i].size();j++){ | ~^~~~~~~~~~~~~~