Compilare: main.cpp: In function 'int main()': main.cpp:55:28: warning: use of an operand of type 'bool' in 'operator++' is deprecated [-Wdeprecated] 55 | ++flip[edge]; | ~~~~~~~~~^ main.cpp:62:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | for(int i = 0 ; i < ans.size() ; ++ i){ | ~~^~~~~~~~~~~~ main.cpp:63:25: warning: comparison of constant '1' with boolean expression is always false [-Wbool-compare] 63 | if(flip[ans[i]] > 1){ | ~~~~~~~~~~~~~^~~