Compilare: main.cpp: In function 'int main()': main.cpp:26:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int j = 1; j < edge[i].size(); j++ ){ ~~^~~~~~~~~~~~~~~~ main.cpp:30:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( (sz + 1) != edge[i].size() ) ~~~~~~~~~^~~~~~~~~~~~~~~~~ main.cpp:65:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < edge[nod].size(); i++ ){ ~~^~~~~~~~~~~~~~~~~~