Compilare: user.cpp: In function ‘void dfs(int, int&)’: user.cpp:33:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[n].size();i++) { ^ user.cpp: In function ‘int main()’: user.cpp:60:29: warning: right operand of comma operator has no effect [-Wunused-value] lo=INT_MIN,hi=0,best; ^ user.cpp: In function ‘void dfs(int, int&)’: user.cpp:45:30: warning: ‘whatEdge’ may be used uninitialized in this function [-Wmaybe-uninitialized] sumC[n]=g[n][whatEdge].second; ^