Compilare: main.cpp: In function 'int main()': main.cpp:43:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(poz[i] < vot[i].size() && ok[vot[i][poz[i]]] == 1) ~~~~~~~^~~~~~~~~~~~~~~ main.cpp:46:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(poz[i] < vot[i].size()) ~~~~~~~^~~~~~~~~~~~~~~