Compilare: main.cpp: In function 'void euler_died_for_this(int)': main.cpp:31:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | while(it[nod] < g[nod].size()){ | ~~~~~~~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:65:27: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 65 | if(finally.size() != m) out << "-1\n"; | ~~~~~~~~~~~~~~~^~~~