Compilare: main.cpp: In function 'int main()': main.cpp:72:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < V.size(); i++) { ~~^~~~~~~~~~ main.cpp:73:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = i + 1; j < V.size(); j++) { ~~^~~~~~~~~~ main.cpp:76:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int k = j + 1; k < V.size(); k++) { ~~^~~~~~~~~~