Compilare: main.cpp: In function 'void dfs(long long int)': main.cpp:20:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for(int i=1;i<con[nod].size();i++) | ~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:70:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 70 | for(int i=0;i<euler.size();i++) | ~^~~~~~~~~~~~~ main.cpp:85:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | for(int i=0;i<euler.size();i++) | ~^~~~~~~~~~~~~ main.cpp:92:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 92 | for(int j=1;j<poz[i].size();j++) | ~^~~~~~~~~~~~~~