Compilare: main.cpp: In function 'void dfs(int)': main.cpp:136:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[x].size();i++) ~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:171:1: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(cerinta==3) ^~ main.cpp:173:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' return 0; ^~~~~~