Compilare: main.cpp: In function 'void euler(int)': main.cpp:19:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<date>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | if(used[nod]<v[nod].size()) | ~~~~~~~~~^~~~~~~~~~~~~~ main.cpp:21:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<date>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for(int i=0;i<v[nod].size();i++) | ~^~~~~~~~~~~~~~ main.cpp:18:14: warning: variable 'x' set but not used [-Wunused-but-set-variable] 18 | for(auto x:v[nod]) | ^ main.cpp: In function 'int main()': main.cpp:53:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for(int i=0;i<ciclu.size()-1;i++) | ~^~~~~~~~~~~~~~~