Compilare: main.cpp: In function 'int main()': main.cpp:125:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i< d.size(); i++){ ~^~~~~~~~~~ main.cpp:133:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(unsigned int i = 1; i<=n;i++){ ~^~~ main.cpp:134:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i == nodStart) continue; ~~^~~~~~~~~~~