Compilare: main.cpp: In function 'int main()': main.cpp:36:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<v.size()-1; i++) ~^~~~~~~~~~~ main.cpp:38:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=i+1; j<v.size(); j++) ~^~~~~~~~~ main.cpp:46:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1; i<pnt.size(); i++) ~^~~~~~~~~~~