Compilare: main.cpp: In function 'int main()': main.cpp:56:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (poz[j] < alegeri[j].size()) ~~~~~~~^~~~~~~~~~~~~~~~~~~ main.cpp:65:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (poz[j] < alegeri[j].size() && elim[alegeri[j][poz[j]]]) ~~~~~~~^~~~~~~~~~~~~~~~~~~