Compilare: main.cpp: In function 'int main()': main.cpp:41:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[1].size();i++) ~^~~~~~~~~~~~ main.cpp:41:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=0;i<v[1].size();i++) ^~~ main.cpp:43:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' int nr=1; ^~~ main.cpp:53:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp:54:124: warning: value computed is not used [-Wunused-value] if(abi[v[nod][i].first]==0) {h.push(make_pair(nod,make_pair(v[nod][i].first,v[nod][i].second)));abi[v[nod][i].first]==1;}; ~~~~~~~~~~~~~~~~~~~~^~~