Compilare: main.cpp: In function 'void eulerDFS(int)': main.cpp:45:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<edge[node].size(); i++){ ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int solveQueries()': main.cpp:152:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^