Compilare: main.cpp: In function 'void BFS1()': main.cpp:21:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for(int x=0;x<v[nod].size();++x) | ~^~~~~~~~~~~~~~ main.cpp:26:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | if(viz[fiu]==invers[fiu].size()) | ~~~~~~~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void BFS2()': main.cpp:39:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(int x=0;x<invers[nod].size();++x) | ~^~~~~~~~~~~~~~~~~~~ main.cpp:44:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | if(viz[fiu]==v[fiu].size()) | ~~~~~~~~^~~~~~~~~~~~~~~