Compilare: main.cpp: In function 'int main()': main.cpp:38:21: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 38 | if ( e[i].size() > ma ) { | ~~~~~~~~~~~~^~~~ main.cpp:46:21: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 46 | if ( e[i].size() > ma && i != p1 ) { | ~~~~~~~~~~~~^~~~