Compilare: main.cpp: In function 'int main()': main.cpp:33:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<rez.size(); i++) ~^~~~~~~~~~~ main.cpp:38:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<rez.size(); i++) ~^~~~~~~~~~~