Compilare: main.cpp: In function 'void eulerPath(int, int)': main.cpp:24:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i<graf[node].size(); i++) ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:51:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 2; i<=log_table.size(); i++) ~^~~~~~~~~~~~~~~~~~ main.cpp:56:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i<sparse_table.size(); i++) ~^~~~~~~~~~~~~~~~~~~~ main.cpp:58:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j+(1<<i)<=euler.size(); j++) ~~~~~~~~^~~~~~~~~~~~~~