Compilare: main.cpp: In function 'int main()': main.cpp:43:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < d.size(); ++i ){ ~~^~~~~~~~~~ main.cpp:54:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v.size(); ++i){ ~~^~~~~~~~~~ main.cpp:53:10: warning: variable 'ok' set but not used [-Wunused-but-set-variable] bool ok = false; /// negativ - 0, pozitiv - 1 ^~