Compilare: main.cpp: In function 'int main()': main.cpp:42:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (start[i] < vot[i].size() && vot[i][start[i]] == pos) { ~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp:44:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (start[i] < vot[i].size() && fv[vot[i][start[i]]]) ~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp:46:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (start[i] < vot[i].size()) ~~~~~~~~~^~~~~~~~~~~~~~~