Compilare: main.cpp: In function 'void dfs(int)': main.cpp:14:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<grapht[nod].size();++i) ~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void euler(int)': main.cpp:21:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<graph[nod].size();++i) ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:49:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<sol[i].size();++j) ~^~~~~~~~~~~~~~