Compilare: main.cpp: In function 'void addhash()': main.cpp:29:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < s.size() ; i++) { ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:72:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < posl.size() ; j++){ ~~^~~~~~~~~~~~~ main.cpp:88:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0 ; j < posl.size() ; j++){ ~~^~~~~~~~~~~~~