Compilare: main.cpp: In function 'void displayGraph()': main.cpp:64:12: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(Graph[i].size() > 0) ^~ main.cpp:71:15: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' cout<<endl; ^~~~ main.cpp: In function 'void displayCosts()': main.cpp:76:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i <= nodes; ++i) fout<<costs[i]<<" "; ~~^~~~~~~~ main.cpp: In function 'int main(int, const char**)': main.cpp:84:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i <= nodes; ++i) costs[i] = -1; ~~^~~~~~~~